Magnet conveying device and magnetic intestine anastomat

Abstract

The invention discloses a magnet conveying device and a magnetic intestine anastomat, and relates to the technical field of medical instruments. The magnet conveying device comprises a pipe body, a chuck in sliding connection with the pipe body and a clamping jaw movably connected with the chuck and connected with the pipe body in a limiting mode, the clamping jaw is used for being detachably connected with a magnet, and the chuck is driven to slide relative to the pipe body and can drive the clamping jaw to move relative to the chuck. And therefore, the clamping jaw can be detachably connected with the magnet. The magnet conveying device can solve the problem that in the prior art, the operation risk exists when suture is adopted in the intestine-intestine anastomosis operation, the intestinal function is completed after the operation is completed, the operation effect that no foreign matter is left in the body of a patient is achieved, and the influence of the operation on the patient is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a magnet delivery device and a magnetic enteroenteric stapler. Background Art

[0002] After the operation, the intestinal function is complete, and there is no foreign body carried for life, which is a key basis for judging the success of the operation. In the existing enteroenterostomy surgery, the site selected for anastomosis should be normal gastrointestinal wall tissue, and the free jejunum should be of sufficient length. The main steps of enteroenterostomy in the prior art are as follows: sew a traction line at each end of the predetermined anastomosis site between the stomach wall and the intestinal wall, temporarily clamp the stomach, intestinal cavity and stomach and intestinal wall blood vessels, suture the gastric submucosal blood vessels, cut the jejunal wall, suture the posterior wall of the anastomosis, and suture the anastomosis Anterior wall. Since enteroenterostomy generally uses thread sutures, there is a risk of bleeding, obstruction, and anastomotic fistula, which has a great impact on the patient's postoperative recovery. Summary of the invention

[0003] The purpose of the present application is to provide a magnet delivery device and a magnetic enteroenteric stapler, which can solve the surgical risks of enteroenteric anastomosis surgery using thread sutures in the prior art, achieve the surgical effect of completing intestinal function after the operation, and no foreign matter remains in the patient's body, thereby reducing the impact of the operation on the patient.

[0004] The embodiment of the present application is implemented as follows:

[0005] In a first aspect of the embodiments of the present application, a magnet delivery device is provided, comprising a tube body, a chuck slidably connected to the tube body, and a clamping jaw movably connected to the chuck and limitedly connected to the tube body, the clamping jaw being used to be detachably connected to the magnet, the chuck being driven to slide relative to the tube body, and being able to drive the clamping jaw to move relative to the chuck, so that the clamping jaw can be detachably connected to the magnet. The magnet delivery device can solve the surgical risks of the prior art intestinal anastomosis surgery using sutures, achieve the surgical effect that the intestinal function is completed after the surgery, and no foreign matter remains in the patient's body, and reduce the impact of the surgery on the patient.

[0006] As an implementation method, a recess is provided on the magnet, the clamping jaw is rotatably connected to the chuck, and after the clamping jaw extends into the recess, the chuck drives the clamping jaw to rotate relative to the chuck, so that the clamping jaw opens to achieve clamping.

[0007] As an implementation method, the middle section of the jaw is rotatably connected to the chuck, the first end of the jaw is limitedly connected to the tube body, the chuck slides toward the first end close to the jaw, and the second end of the jaw opposite to the first end rotates toward the side away from the tube body, so that the jaw changes from a retracted state to an open state.

[0008] As an implementation method, the number of the clamping jaws is two, and the two clamping jaws are arranged on both sides of the chuck along the rotation axis direction of the clamping jaws.

[0009] As an implementation method, a first limiting portion is provided on the tube body, and a second limiting portion is provided on the clamping jaw, and the first limiting portion and the second limiting portion cooperate with each other to limit the movement of the clamping jaw relative to the tube body.

[0010] As an implementable embodiment, the first limiting portion is a protrusion, and the second limiting portion is a groove matched with the protrusion; or, the first limiting portion is a groove, and the second limiting portion is a protrusion matched with the groove.

[0011] As an implementation method, it also includes a pushing member slidably disposed in the tube body, one end of the pushing member is fixedly connected to the chuck, and the other end of the pushing member is driven to drive the chuck to slide relative to the tube body.

[0012] As an implementation method, it also includes a handle fixedly connected to the end of the tube body away from the chuck, a fixing portion fixedly arranged on the end of the handle away from the tube body, and a pulling portion slidably mounted on the handle, the pulling portion is fixedly connected to the other end of the pushing member, and the pulling portion is driven to move toward the side away from the fixing portion, so that the pushing member drives the chuck to slide relative to the tube body.

[0013] As an implementation method, it further includes an elastic member, both ends of which are respectively connected to the fixing portion and the pushing member, and the elastic member has a movement tendency to drive the pushing member to move toward a side away from the fixing portion.

[0014] The second aspect of the embodiment of the present application provides a magnetic enteroenteric stapler, comprising a magnet, an auxiliary fixator, and the above-mentioned magnet delivery device, wherein the magnet delivery device is detachably connected to the magnet, so that after the magnet is delivered to a preset position, the magnet delivery device is separated from the magnet, so that the magnet is fixed at the preset position through the auxiliary fixator. The magnet delivery device can solve the surgical risks of enteroenteric anastomosis surgery using sutures in the prior art, achieve the surgical effect of completing the intestinal function after the surgery, and no foreign matter remains in the patient's body, thereby reducing the impact of the surgery on the patient.

[0015] The beneficial effects of the embodiments of the present application include:

[0016] The magnet conveying device includes a tube body, a chuck slidably connected to the tube body, and a clamping claw movably connected to the chuck and limitedly connected to the tube body. The clamping claw is used to be detachably connected to the magnet. The chuck is driven to slide relative to the tube body, which can drive the clamping claw to move relative to the chuck, so that the clamping claw can be detachably connected to the magnet. When the chuck is driven by an external force to slide relative to the tube body, it can drive the clamping claw to move relative to the chuck. In this way, the clamping claw can be detachably connected to the magnet, so that during the operation, the magnet can be easily installed on the magnet conveying device, and can also be smoothly separated after the magnet reaches the designated position. The magnet conveying device can solve the surgical risks of the prior art intestinal anastomosis surgery using thread sutures, and achieve the surgical effect that the intestinal function is completed after the operation, and there is no foreign matter left in the patient's body, thereby reducing the impact of the operation on the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a magnet conveying device provided in an embodiment of the present application;

[0019] Figure 2 One of the structural schematic diagrams of the clamping jaws provided in the embodiment of the present application in an open state;

[0020] Figure 3 One of the structural schematic diagrams of the clamping jaws provided in the embodiment of the present application in a retracted state;

[0021] Figure 4 The second structural schematic diagram of the clamping jaws in the open state provided in the embodiment of the present application;

[0022] Figure 5 The second structural schematic diagram of the clamping jaws in the folded state provided in the embodiment of the present application;

[0023] Figure 6 A schematic diagram of the structure of the auxiliary fixator provided in an embodiment of the present application.

[0024] Icon: 100-magnet conveying device; 10-tube body; 11-first limiting part; 20-chuck; 30-clamping claw; 31-second limiting part; 40-pushing member; 50-handle; 60-fixing part; 70-pulling part; 80-elastic member; 200-magnet; 300-auxiliary fixer; 301-pulling member; 302-handle. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] Traditional intestinal anastomosis surgery mostly uses sutures, but this method has many risks, such as bleeding, obstruction, and anastomotic leakage. To solve the above problems, please refer to Figures 1 to 6 The present application provides a magnetic enteroenteric stapler, comprising a magnet 200, an auxiliary fixator 300, a small intestine endoscope, and the above-mentioned magnet delivery device 100, wherein the magnet delivery device 100 can be detachably connected with the magnet 200 to deliver the magnet 200 to a preset position, and then the magnet delivery device 100 is separated from the magnet 200, and the magnet 200 can be fixed at the preset position by the auxiliary fixator 300. For example, Figure 6 As shown, the auxiliary fixator 300 includes a handle 302 and a pulling member 301 fixedly connected to the handle 302, so that the handle 302 drives the pulling member 301 to move, thereby pulling the magnet 200 to change its position.

[0032] The working principle of the above-mentioned magnetic enteroenteric stapler is as follows: use the auxiliary fixator 300, the small intestine endoscope and the magnet conveying device 100 to place the two magnets 200 at the intestinal position that needs to be anastomosed, let the two magnets 200 fit together and squeeze each other, and over time, the part squeezed by the magnet 200 will necrotize and fall off due to ischemia, and then a new digestive tract will be formed at the anastomotic position, and the detached part will be discharged from the body along this new digestive tract together with the excrement, which can not only solve the surgical risks of enteroenteric anastomosis surgery using sutures in the prior art, but also achieve the surgical effect that the intestinal function is completed after the operation, and there is no foreign body remaining in the patient's body, thereby reducing the impact of the operation on the patient.

[0033] For ease of explanation and understanding, the two magnets 200 are referred to as the first magnet and the second magnet, respectively. The attraction process of the first magnet and the second magnet is as follows: first, the magnet transport device 100 is installed together with the small enteroscope through the biopsy channel of the small enteroscope, and then the first magnet is installed on the magnet transport device 100. Then, the first magnet, the magnet transport device 100 and the small enteroscope are sent into the human body through the mouth. After the delivery, the auxiliary fixator 300 is sent into the pneumoperitoneum through the puncture card and placed. Then, the auxiliary fixator 300 is used to attract the first magnet and pull the first magnet to the first anastomosis position; similarly, the second magnet is sent into the human body and pulled to the second anastomosis position; then, the first magnet and the anastomosed intestinal segment are lifted by the auxiliary fixator 300 to make them close to the second magnet. After the anastomosis of the first magnet and the second magnet is completed, the auxiliary fixator 300, the small enteroscope and the magnet transport device 100 can be removed from the human body.

[0034] For details, please refer to Figures 1 to 5The magnet delivery device 100 comprises a tube body 10, a chuck 20 slidably connected to the tube body 10, and a clamp 30 movably connected to the chuck 20 and limitedly connected to the tube body 10. The clamp 30 is used to be detachably connected to the magnet 200. The chuck 20 is driven to slide relative to the tube body 10, which can drive the clamp 30 to move relative to the chuck 20, so that the clamp 30 can be detachably connected to the magnet 200. The magnet delivery device 100 can solve the surgical risks of the intestinal anastomosis surgery using sutures in the prior art, achieve the surgical effect that the intestinal function is completed after the surgery, and there is no foreign matter left in the patient's body, thereby reducing the impact of the surgery on the patient.

[0035] It should be noted that the magnet delivery device 100 includes a tube body 10, a chuck 20 and a clamp 30, wherein the chuck 20 is slidably connected to the tube body 10 so that the chuck 20 can slide relative to the tube body 10, the clamp 30 is movably connected to the chuck 20, and the clamp 30 is also limitedly connected to the tube body 10 so that the clamp 30 can move relative to the chuck 20, and the tube body 10 can also limit the movement of the clamp 30 relative to the chuck 20, thereby ensuring that the movement stroke of the clamp 30 meets the requirements. When the chuck 20 is driven by an external force to slide relative to the tube body 10, it can drive the clamp 30 to move relative to the chuck 20, so that the clamp 30 can be detachably connected with the magnet 200, so that during the operation, the magnet 200 can be conveniently installed on the magnet delivery device 100, and can also be smoothly separated after the magnet 200 reaches the designated position.

[0036] As an implementation method, Figures 1 to 3 As shown, in this embodiment, a recess is provided on the magnet 200, and the clamping jaw 30 is rotatably connected with the chuck 20. When the clamping jaw 30 is inserted into the recess, the chuck 20 is driven by an external force to slide in the positive direction relative to the tube body 10, which can drive the clamping jaw 30 to rotate relative to the chuck 20, so that the clamping jaw 30 is opened along a preset track, so that the clamping jaw 30 can be connected with the recess of the magnet 200 to complete the assembly of the magnet 200 and the magnet conveying device 100. After the magnet 200 reaches the preset position, it is only necessary to drive the chuck 20 to slide in the reverse direction relative to the tube body 10, so that the clamping jaw 30 is closed along the preset track, and the magnet 200 and the magnet conveying device 100 can be separated.

[0037] In addition, in some embodiments, the above-mentioned magnet 200 and the magnet conveying device 100 can be fixed in a plug-in form. For example, a recess is provided on the magnet 200. When the chuck 20 slides in the forward direction, the preset trajectory of the jaw 30 can make the jaw 30 protrude from the chuck 20 so that the jaw 30 is plugged into the recess of the magnet 200. When the chuck 20 slides in the reverse direction, the preset trajectory of the jaw 30 can make the jaw 30 recessed in the chuck 20 so that the jaw 30 is separated from the recess of the magnet 200; or, in other embodiments, the above-mentioned magnet 200 and the magnet conveying device 100 can be fixed in a clamping form. For example, a convex portion is provided on the magnet 200. When the chuck 20 slides in the forward direction, the preset trajectory of the jaw 30 can make the jaw 30 clamp the convex portion. When the chuck 20 slides in the reverse direction, the preset trajectory of the jaw 30 can make the jaw 30 release the convex portion.

[0038] As an implementation method, Figure 4 and Figure 5 As shown, in this embodiment, the middle section of the clamping jaw 30 is rotatably connected to the clamping head 20, the first end of the clamping jaw 30 is limitedly connected to the tube body 10, the clamping head 20 slides toward the first end close to the clamping jaw 30 (i.e., the above-mentioned positive direction), and the second end of the clamping jaw 30 opposite to the first end rotates toward the side away from the tube body 10, so that the clamping jaw 30 changes from the closed state to the open state. After the magnet 200 reaches the preset position, it is only necessary to drive the clamping head 20 to slide toward the first end away from the clamping jaw 30 (i.e., the above-mentioned reverse direction), and the second end of the clamping jaw 30 rotates toward the side close to the tube body 10, so that the clamping jaw 30 changes from the open state to the closed state.

[0039] In order to further improve the stability and reliability of the clamping jaw 30 and the recessed portion of the magnet 200 during the clamping process, as an implementation method, Figures 2 to 5 As shown, in this embodiment, the number of the clamping jaws 30 is two, and the two clamping jaws 30 are respectively disposed on opposite sides of the clamping head 20 along the rotation axis direction of the clamping jaws 30 and the clamping head 20 .

[0040] As an implementation method, Figure 4 and Figure 5 As shown, in this embodiment, a first limiting portion 11 is provided on the tube body 10, and a second limiting portion 31 is provided on the clamping jaw 30. The first limiting portion 11 and the second limiting portion 31 cooperate with each other to limit the movement of the clamping jaw 30 relative to the tube body 10 to ensure that the clamping jaw 30 moves along a preset trajectory.

[0041] As an implementation method, Figure 4 and Figure 5As shown, in this embodiment, the first limiting portion 11 can be a protrusion, and the second limiting portion 31 can be a groove matched with the protrusion; or, in other embodiments, the first limiting portion 11 can be a groove, and the second limiting portion 31 can be a protrusion matched with the groove. In particular, considering the smoothness of the movement process of the clamping jaw 30, the above-mentioned groove can be an arc groove.

[0042] As an implementation method, Figure 1 , Figure 4 and Figure 5 As shown, in this embodiment, the magnet conveying device 100 further includes a pusher 40 slidably disposed in the tube body 10, one end of the pusher 40 is fixedly connected to the chuck 20, and the other end of the pusher 40 is driven to drive the chuck 20 to slide relative to the tube body 10. In this way, the chuck 20 can be conveniently driven to move by the pusher 40 at the end away from the chuck 20. For example, the pusher 40 can be a push rod or a steel wire. When the pusher 40 is a steel wire, the volume of the product can be significantly reduced.

[0043] For example, the two magnets 200 are rectangular magnets 200 with a width of 6 mm and 7 mm respectively; the length of the two magnets 200 can be 20 mm; the wire diameter of the magnet delivery device 100 is less than or equal to 2.8 mm; the maximum diameter of the auxiliary fixator 300 is 10 mm, so that the two magnets 200, the magnet delivery device 100 and the small intestine endoscope can be delivered into the human body through the mouth, and the auxiliary fixator 300 can be delivered into the pneumoperitoneum through the puncture card. Regarding the specific dimensions of the two magnets 200, the magnet delivery device 100 and the auxiliary fixator 300, those skilled in the art should be able to make reasonable selections and designs according to actual conditions, and no specific restrictions are made here.

[0044] As an implementation method, Figures 1 to 3 As shown, in this embodiment, the magnet conveying device 100 also includes a handle 50 fixedly connected to one end of the tube body 10 away from the chuck 20, a fixing portion 60 fixedly arranged on the end of the handle 50 away from the tube body 10, and a pulling portion 70 slidably sleeved on the handle 50. The pulling portion 70 and the other end of the pushing member 40 can be fixedly connected through the through hole on the handle 50. The pulling portion 70 is driven to move toward the side away from the fixing portion 60, so that the pushing member 40 drives the chuck 20 to slide relative to the tube body 10, so that the operator drives the pushing member 40 through the pulling portion 70, and then drives the chuck 20 to move in the forward or reverse direction, so as to improve the feasibility of operation.

[0045] As an implementation method, Figure 1As shown, in this embodiment, the magnet conveying device 100 also includes an elastic member 80, the two ends of which are respectively connected to the fixing portion 60 and the pushing member 40, and the elastic member 80 has a movement tendency to drive the pushing member 40 to move toward a side away from the fixing portion 60 to improve the ease of operation.

[0046] The assembly and separation process of the magnet 200 and the magnet conveying device 100 is as follows: Figures 4 to 5 First, the magnet delivery device 100 is passed through the biopsy channel of the small intestine endoscope, and then the chuck 20 is inserted into the recess of the magnet 200. After insertion, the elastic member 80 on the handle 50 will automatically stretch, and then the compression pusher 40 will open the two jaws 30 on the chuck 20 along a preset trajectory, and then the jaws 30 will be clamped in the recess of the magnet 200; please follow Figure 5 to Figure 4 The sequence can be understood that after the magnet 200 reaches the preset position, the pulling part 70 is pulled backward, the pushing part will move to the side away from the chuck 20 and compress the elastic member 80, and the two jaws 30 of the chuck 20 will gradually close along the preset trajectory, and then the chuck 20 can be taken out from the magnet 200 to achieve separation.

[0047] The above description is only an optional embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0048] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not further describe various possible combinations.

Claims

1. A magnet conveying device, characterized in that: It includes a tube body, a chuck slidably connected to the tube body, and a jaw movably connected to the chuck and limitedly connected to the tube body, the jaw is used to be detachably connected to the magnet, the chuck is driven to slide relative to the tube body, and can drive the jaw to move relative to the chuck, so that the jaw can be detachably connected to the magnet.

2. The magnet conveying device according to claim 1, characterized in that: The magnet is provided with a recess, the clamping jaw is rotatably connected to the clamping head, and after the clamping jaw is inserted into the recess, the clamping head drives the clamping jaw to rotate relative to the clamping head, so that the clamping jaw is opened to realize clamping.

3. The magnet conveying device according to claim 2, characterized in that: The middle section of the jaw is rotatably connected to the chuck, the first end of the jaw is limitedly connected to the tube body, the chuck slides toward the first end close to the jaw, and the second end of the jaw opposite to the first end rotates toward the side away from the tube body, so that the jaw changes from a retracted state to an open state.

4. The magnet conveying device according to claim 3, characterized in that: The number of the clamping jaws is two, and the two clamping jaws are arranged on both sides of the clamping head along the rotation axis direction of the clamping jaws.

5. The magnet transport device according to any one of claims 1 to 4, characterized in that: The tube body is provided with a first limiting portion, and the clamping jaw is provided with a second limiting portion, and the first limiting portion and the second limiting portion cooperate with each other to limit the movement of the clamping jaw relative to the tube body.

6. The magnet conveying device according to claim 5, characterized in that: The first limiting portion is a protrusion, and the second limiting portion is a groove matched with the protrusion; or, the first limiting portion is a groove, and the second limiting portion is a protrusion matched with the groove.

7. The magnet conveying device according to claim 1, characterized in that: It also includes a pushing member slidably arranged in the tube body, one end of the pushing member is fixedly connected to the clamp, and the other end of the pushing member is driven to drive the clamp to slide relative to the tube body.

8. The magnet conveying device according to claim 7, characterized in that: It also includes a handle fixedly connected to one end of the tube body away from the chuck, a fixing portion fixedly arranged on the end of the handle away from the tube body, and a pulling portion slidably sleeved on the handle, wherein the pulling portion is fixedly connected to the other end of the pushing member, and the pulling portion is driven to move toward the side away from the fixing portion, so that the pushing member drives the chuck to slide relative to the tube body.

9. The magnet conveying device according to claim 8, characterized in that: It also includes an elastic member, two ends of which are respectively connected to the fixing portion and the pushing member, and the elastic member has a movement tendency to drive the pushing member to move toward a side away from the fixing portion.

10. A magnetic enteroenteric stapler, characterized in that: It comprises a magnet, an auxiliary fixer, and a magnet conveying device as described in any one of claims 1 to 9, wherein the magnet conveying device is detachably connected to the magnet so that after the magnet is conveyed to a preset position, the magnet conveying device is separated from the magnet so that the magnet can be fixed at the preset position by the auxiliary fixer.

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