Ureter combining device under laparoscope

Abstract

The utility model discloses a laparoscopic ureter merging device. The laparoscopic ureter merging device comprises a traction handle, one end of the traction rod is connected with a traction handle; the guide wire is connected with the other end of the traction rod; the lantern ring is connected with one end, far away from the traction rod, of the guide wire; an outer sheath tube; an accommodating space is formed in the outer sheath tube, and the guide wire and the traction rod can slide in the accommodating space; the guide line is matched with the lantern ring and the outer sheath tube and used for being fixedly connected to the ureter. By means of the components, on the premise that the device does not make direct contact with the ureter, mechanical damage is not caused, the technical effect that the ureter can be effectively combined can be achieved, the structural arrangement is ingenious, and arrangement is reasonable. The guide line is matched with the lantern ring and the outer sheath tube, the problem that in the prior art, a ureter combining device is difficult to implement freely or separate from the ureter of a patient is solved, and the situation that the operation time is prolonged due to the fact that operation instruments are inconvenient to operate can be effectively avoided. Deformable materials are arranged on the basis of the guide wire and the outer sheath tube, the device can smoothly reach the operation applying position of a patient under a laparoscope through the metal material characteristic of the guide wire, preferably, the combined structure of the guide wire and the outer sheath tube can be arranged to be a J-shaped structure, the requirement of the operation applying structure of the patient is met, and the operation applying effect is improved. The problem that a traction device difficultly passes through intestinal tissues to reach a target ureter can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of urinary diversion surgical instruments, and in particular to a laparoscopic ureteral merging device. Background Art

[0002] At present, laparoscopic surgery technology has become mature. Specifically, an incision is opened in the patient's waist and abdomen, and a "trocar" surgical channel is inserted, so that the surgery can be performed through special surgical instruments in the "trocar" channel and under electronic monitoring equipment. Laparoscopic technology has been widely used in urinary system surgery to achieve minimally invasive effects. For example, after a total cystectomy, the patient usually needs to undergo a urinary diversion surgery, which needs to be performed under laparoscopy. The operator needs to cut off and clamp one side of the ureter behind the intestinal tube and drag it to the other side for ureteral merging. In the process of dragging the ureter to the contralateral ureter, the traditional method is to directly clamp and drag the ureter with a metal separation clamp under laparoscopy. However, since the merging of ureters needs to pass through the intestinal tissue, the metal material and straight handle design of the separation clamp itself make it difficult to effectively find the ureter, and the operation is more difficult. In addition, because the surgical instruments such as separation clamps have sharp ends, it is very easy to cause mechanical damage to the patient's intestines and ureters.

[0003] In the prior art, Chinese patent CN202021540976.5 is disclosed, which is specifically a laparoscopic surgical tissue traction device, including a first traction hook for clamping and pulling the target tissue, the first traction hook including: a chuck, the chuck is used to deform and / or lock under the action of an external force to clamp the target tissue, the chuck is connected to a traction line for pulling the target tissue, and a connecting ring is provided on the traction line. The connecting ring is used to connect with the traction device, so that the traction line is pulled out of the patient's body and fixed under the action of the traction device to achieve traction of the target tissue. The device solves the problem of insufficient separation clamp force to a certain extent through the chuck device, and replaces the metal handle of the separation clamp with a traction line to avoid further damage to the intestine. However, in the actual operation process, there are problems such as it is difficult to pass through the intestinal tissue to reach the ureter due to the shape of the traction line and the chuck, and it is difficult for the clamping device to open the clamp and separate the device from the patient's ureter after the ureter is dragged.

[0004] Therefore, how to make the combined instrument structure easy to pass through the intestinal tissue, find the target ureter, and solve the problem of mechanical damage to the patient during the operation, while achieving the effect of the combined device being freely implemented or separated from the patient's ureter, is an urgent problem to be solved in the field of urinary diversion medical surgical instruments. Utility Model Content

[0005] In order to solve or at least address the problems raised in the above background technology, the present application provides a laparoscopic ureteral fusion device.

[0006] To achieve the above objectives, this application provides the following technical solutions:

[0007] A laparoscopic ureteral merging device includes: a pulling handle; a pulling rod, one end of which is connected to the pulling handle; a guide wire, which is connected to the other end of the pulling rod; a collar, which is connected to the end of the guide wire away from the pulling rod; an outer sheath; a receiving space is provided inside the outer sheath, and the guide wire and the pulling rod can slide in the receiving space; a guide wire, which cooperates with the collar and the outer sheath to be fixedly connected to the ureter. Through the combination of the above components, the device can achieve the technical effect of effectively merging the ureter without causing mechanical damage without directly contacting the ureter.

[0008] As a further solution of the present application: the guide wire is a deformable metal wire. The deformability of the guide wire can be used to adapt to the surgical structures of different patients, making it easier for the device to pass through the intestinal tissue to reach the surgical area. The hardness of the metal material of the guide wire prevents secondary deformation during laparoscopic surgery, effectively guiding the device to pass through the intestine to reach the target ureter, thereby increasing surgical safety.

[0009] As a further solution of the present application, an anti-slip structure is also included, which is arranged on the side of the pulling handle. The anti-slip structure can increase the friction generated when the operator pushes and pulls the pulling rod, and can prevent the pulling rod from completely sliding into the outer sheath.

[0010] As a further solution of the present application: the outer sheath is a tubular structure with openings at both ends, and has the above-mentioned accommodating space inside to allow the guide wire and the traction rod to slide smoothly, which can not only ensure the flexibility of the device during operation, but also drive the guide wire and the ring by pulling back or pushing the traction rod to adjust the degree of coordination between the guide wire and the ring and the outer sheath, thereby achieving the effect of freely implementing or separating the device from the patient's ureter.

[0011] As a further solution of the present application: the outer sheath is made of a medical flexible material, such as medical silicone rubber or medical plastic material, so that when the device passes through the intestinal tissue, the patient's tissue will not be subjected to additional mechanical damage due to the outer sheath.

[0012] As a further solution of the present application: the outer sheath and the guide wire can be designed as a J-shaped structure. The curved portion design can make it easier for the outer sheath and the guide wire to pass through the intestinal tissue and reach the target ureter during laparoscopic operation.

[0013] As a further solution of the present application: the maximum diameter of the outer wall of the outer sheath can be adjusted according to actual needs, preferably between 2 mm and 9 mm. This range can ensure that the device can pass through the "trocar" channel for easy implementation in laparoscopic surgery.

[0014] As a further solution of the present application: the guide wire is connected to the ligation clip, and the guide wire length reserved from the connection is 50mm to 100mm. This solution can achieve the relative fixation effect of the guide wire and the ureter, and the reserved length can make the guide wire have enough operating space in the abdominal cavity, avoiding the loosening of the device due to the guide wire being too short.

[0015] As a further solution of the present application: the maximum diameter of the outer ring of the collar is smaller than the inner wall diameter of the outer sheath, so that the collar can slide in the accommodating space of the outer sheath. The collar and the outer sheath can further cooperate to make the positions of the collar, the outer sheath and the guide wire relatively fixed, so as to achieve the fixing effect of the device on the ureter.

[0016] As a further solution of the present application: the inner ring wall of the collar is provided with an anti-loosening structure, which may be a serrated structure or a frosted structure, etc., for increasing the friction between the collar and the guide wire, and preventing the guide wire from loosening during the ureteral merging process, thereby affecting the traction function of the present application on the ureter.

[0017] Compared with the prior art, this application has the following beneficial effects:

[0018] 1. The present application provides a laparoscopic ureteral merging device, comprising: a laparoscopic ureteral merging device, characterized in that it comprises: a pulling handle; a pulling rod, one end of the pulling rod is connected to the pulling handle; a guide wire, the guide wire is connected to the other end of the pulling rod; a collar, the collar is connected to the end of the guide wire away from the pulling rod; an outer sheath; a receiving space is provided inside the outer sheath, and the guide wire and the pulling rod can slide in the receiving space; a guide wire, the guide wire cooperates with the collar and the outer sheath, and is used to be fixedly connected to the ureter. The present application can achieve the technical effect of effectively merging the ureter without causing mechanical damage under the premise of not directly contacting the ureter, and the structural setting is ingenious and the layout is reasonable. The present application uses the cooperation of the guide wire with the collar and the outer sheath to solve the problem that the device in the prior art cannot be freely implemented or separated from the patient's ureter, and can effectively avoid the problem of prolonged operation time due to inconvenient operation of surgical instruments.

[0019] 2. The present application further configures the guide wire and the outer sheath to be made of a deformable material. The metal material characteristics of the guide wire enable the device to smoothly reach the patient's surgical position under laparoscopy. Preferably, the combined structure of the guide wire and the outer sheath can be configured as a J-shaped structure, which meets the needs of the patient's surgical structure and can solve the problem that the traction device is difficult to pass through the intestinal tissue to reach the target ureter.

[0020] 3. The present application sets the diameter of the ring to a structure that can enter the accommodating space of the outer sheath. By setting the ring to be able to move freely in the outer sheath, the fixation effect of the device on the ureter can be further improved, and the efficiency of implementation and separation of the device can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of a laparoscopic ureteral merging device provided in an embodiment of the present application.

[0022] Figure 2 A schematic structural diagram of a laparoscopic ureteral merging device provided in an embodiment of the present application.

[0023] Figure 3 A schematic diagram of the internal structure of a laparoscopic ureteral merging device provided in an embodiment of the present application.

[0024] Figure 4 A schematic diagram of the application of a laparoscopic ureteral merging device provided in an embodiment of the present application.

[0025] Figure 5 for Figure 4 Enlarged view of point A.

[0026] In the figure: 1 - pulling handle; 2 - pulling rod; 3 - guide wire; 4 - loop; 5 - outer sheath; 6 - anti-slip structure; 7 - guide wire. DETAILED DESCRIPTION

[0027] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0028] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; in addition, 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 or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0030] The inventor of the present application has found that in urinary diversion surgery, there is a problem of mechanical damage to the patient during the ureteral traction and merging process due to the lack of effective laparoscopic traction surgical instruments, which prolongs the patient's operation time and is very harmful to the patient. Traditional ureteral merging instruments mostly use conventional surgical instruments such as separation forceps and puncture needles. However, since the ureteral merging process requires the operation to pass through the intestinal tissue, it is easy to cause unnecessary mechanical damage to the patient's internal tissue when using conventional surgical instruments. The existing technology is difficult to guide the device through the intestine to be applied to the ureter, and there is no free implementation or separation from the patient's ureter, which is not generally practical.

[0031] In view of this, the present application provides a laparoscopic ureteral merging device, comprising: a pulling handle 1; a pulling rod 2, one end of which is connected to the pulling handle 1; a guide wire 3, which is connected to the other end of the pulling rod 2; a collar 4, which is connected to the end of the guide wire 3 away from the pulling rod 2; an outer sheath 5; a receiving space is provided inside the outer sheath 5, and the guide wire 3 and the pulling rod 2 can slide in the receiving space; a guide wire 7, which cooperates with the collar 4 and the outer sheath 5 and is used to be fixedly connected to the ureter. The present application can achieve the technical effect of effectively merging the ureter without causing mechanical damage without directly contacting the ureter through the combination of the above components, and the structural setting is ingenious and the layout is reasonable. The present application uses the cooperation of the guide wire with the collar and the outer sheath to solve the problem that the device in the prior art cannot be freely implemented or separated from the patient's ureter, and can effectively avoid the problem of prolonged operation time due to inconvenient operation of surgical instruments. The present application is configured with a deformable material based on the guide wire 3 and the outer sheath tube 5. The metal material characteristics of the guide wire 3 enable the device to smoothly reach the patient's surgical position under laparoscopy. Preferably, the combined structure of the guide wire 3 and the outer sheath tube 5 can be configured as a J-shaped structure, which adapts to the needs of the patient's surgical structure and can solve the problem that the traction device is difficult to pass through the intestinal tissue to reach the target ureter.

[0032] See also Figure 1-3 , Figure 1 A schematic structural diagram of a laparoscopic ureteral merging device provided in an embodiment of the present application. Figure 2 A schematic structural diagram of a laparoscopic ureteral merging device provided in an embodiment of the present application. Figure 3 The internal structure diagram of a laparoscopic ureteral merging device provided in an embodiment of the present application is shown in FIG. The self-controlled joint extension disorder correction device comprises: a pulling handle 1 , a pulling rod 2 , a guide wire 3 , a collar 4 , an outer sheath 5 and a guide wire 7 .

[0033] In this embodiment, one end of the pulling rod 2 is connected to a pulling handle 1; the guide wire 3 is connected to the other end of the pulling rod 2; the collar 4 is connected to the other end of the guide wire 3 away from the pulling rod 2; the outer sheath 5 is provided with a storage space inside, and the guide wire 3 and the pulling rod 2 can slide in the storage space; the guide wire 7 cooperates with the collar 4 and the outer sheath 5 to be fixedly connected to the ureter. The above design enables the device to achieve the technical effect of merging the ureter without causing mechanical damage. The structure is cleverly set and reasonably arranged. The cooperation of the guide wire 7 with the collar 4 and the outer sheath 5 solves the problem of being unable to be freely implemented or separated from the ureter in the prior art, and can effectively avoid the extension of the operation time due to the inconvenience of operating surgical instruments.

[0034] In order to facilitate the device to pass through the intestinal tissue to reach the treatment area, in the embodiment of the present application, the guide wire 3 is a deformable metal wire that can be directly purchased on the market. The deformability of the guide wire 3 can be used to adapt to the treatment structure of different patients. The hard material characteristics of the guide wire 3 can ensure that the device will not be deformed again during the treatment process, and can make the device easier to pass through the intestinal tissue.

[0035] In order to prevent slipping during the operation and increase the friction force, a device is provided to prevent the pulling rod 2 from completely sliding into the outer sheath tube 5. In the embodiment of the present application, an anti-slip structure 6 is also included, and the anti-slip structure 6 is provided on the side of the pulling handle 1. The anti-slip structure 6 can be a plurality of groove structures with protruding ends. The groove ends can increase the friction force between the operator's hand and the pulling handle 1. The protruding length of the protruding end can be set to exceed the outer tube radius of the outer sheath tube 5, which can prevent the pulling rod 2 from completely sliding into the outer sheath tube 5.

[0036] In order to further realize the traction function of the device and realize the free implementation or separation of the device from the ureter, in the embodiment of the present application, the outer sheath 5 is a tubular structure with openings at both ends, and has the above-mentioned accommodating space inside to allow the guide wire 3 and the traction rod 2 to slide smoothly. Preferably, the inner wall of the outer sheath 5 can be coated with lubricating material to reduce sliding friction, thereby ensuring the flexibility of the device during operation.

[0037] In order to further avoid mechanical damage to the patient when the device passes through the intestinal tissue and improve the safety of the operation, in the embodiment of the present application, the material of the outer sheath 5 is a medical flexible material, which can be medical silicone rubber or medical plastic material, further reducing the possibility of mechanical damage during the operation.

[0038] In order to adapt to the tissue structure requirements of the pressure application site of different patients, so that during laparoscopic operation, the outer sheath 5 and the guide wire 3 can more easily pass through the intestinal tissue and reach the target ureter position, in an embodiment of the present application, the outer sheath 5 and the guide wire 3 can be designed as a J-shaped structure through the deformability of the outer sheath 5 and the guide wire 3, which can effectively adapt to the actual surgical channel requirements.

[0039] Since laparoscopic surgery is performed in a "trocar" channel with a diameter of 5mm or 10mm, in order to ensure that the device can pass through the "trocar" channel for easy implementation in laparoscopic surgery, the maximum diameter of the outer wall of the outer sheath 5 can be adjusted according to actual needs, preferably between 2mm and 9mm.

[0040] See also Figure 4 and Figure 5 , Figure 4 A schematic diagram of the application of a laparoscopic ureteral merging device provided in an embodiment of the present application. Figure 5 for Figure 4 The enlarged view at A is to illustrate the specific situation when the device is used, that is, when the pulling rod 2 is pulled back. Figure 4 and Figure 5 A schematic diagram of the application of the device of the present application is provided to illustrate the relative positional relationship between the guide wire 7, the collar 4, and the outer sheath 7 during application. The unmarked tubular structure in the figure is a simple schematic diagram of a ureter connected to a ligation clamp and clamped. In an embodiment of the present application, in order to achieve the relative fixing effect between the guide wire 7 and the ureter, and then determine the relative positional relationship between the guide wire 7, the collar 4, and the outer sheath 5 during application, the guide wire 7 is connected to the ligation clamp, and the ligation clamp can be a Hemlock ligation clamp, which is used to clamp after the ureter is severed. In order to avoid the device from being loosened due to the guide wire 7 being too short, the length of the guide wire 7 reserved from the connection can be 50mm to 100mm. The reserved length can allow the guide wire 7 to have enough operating space in the abdominal cavity to avoid the guide wire 7 being too long or too short.

[0041] In order to achieve a further fixing effect of the device on the ureter, in the embodiment of the present application, the maximum diameter of the outer ring of the collar 4 is smaller than the inner wall diameter of the outer sheath 5, so that the collar 4 can slide in the accommodating space of the outer sheath 5. When the traction rod 2 is pulled back, the collar 4 is driven to be pulled back to the inside of the outer sheath 5, and then cooperates with the wall of the outer sheath 5 to fix the relative position of the guide wire and the collar 4 and the outer sheath 5, thereby achieving a further fixing effect of the device on the ureter.

[0042] In order to increase the friction between the ring 4 and the guide wire 7 and prevent the guide wire from loosening during the ureteral merging process and affecting the traction function of the ureter in this application, in an embodiment of the present application, the inner ring wall of the ring is provided with an anti-loosening structure, which may be a serrated structure or a frosted structure.

[0043] The working principle of the embodiment of the present application is: in the urinary diversion surgery, the target ureter is firstly cut off, and then the cut position is clamped with Hemlock clamp. Before the clamping is performed, the operator has tied the guide wire 7 in the device to the Hemlock ligation clamp and reserved a guide wire 7 with a length of 50mm to 100mm at the tie. Then, the operator takes out the other components of the device, pushes the traction handle 1 to expose the ring 4 and part of the guide wire 3 outside the outer sheath 5; then, the operator deforms the guide wire 3 and the outer sheath 5 into a J shape and inserts the ends of the ring 4 and the guide wire 3 into the "trocar" channel; since the diameter of the outer sheath 5 and the ring 4 is 2mm to 9mm, they can be inserted into the channel for laparoscopic surgery; due to the J-shaped bend and the material of the outer sheath 5, the device can pass through the intestinal tissue to find the target ureter without causing mechanical damage to the patient. After finding the guide wire 7 fixed by the ligature clip on the target ureter, the operator can pass the reserved guide wire 7 through the inner ring of the collar 4 by means of a separating forceps, etc., and the collar 4 can be as close to the tie of the guide wire 7 as possible. After the guide wire 7 passes through the collar 4, the operator pulls back the traction handle 1, slides the collar 4 into the outer sheath 5, and fixes the guide wire 7 to the collar 4 and the outer sheath 5 through the outer wall part of the tube end close to one end of the collar and the collar 4, so as to achieve the fixing effect of the device and the target ureter. Under the premise of keeping the traction handle 1 pulled, the operator can move the outer wall tube 5 to achieve the traction effect on the target ureter. During the traction process, due to the J-shaped structure, the device is also easy to drive the target ureter through the intestinal tissue to find the opposite ureter while fixing the target ureter, and the cooperation of the flexible outer sheath 5 and the collar 4 will not cause damage to the ureter and other tissues. After completing the merging of the target ureter to the contralateral ureter, the operator pushes the traction handle 1 to move the ring 4 out of the outer sheath 5, thereby separating the guide wire 7 of the device from other components, and separating the device from the patient's body to complete the ureteral merging.

[0044] The preferred implementation of this patent has been described in detail above, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A laparoscopic ureteral merging device, characterized in that: include: Pull handle (1); A pulling rod (2), one end of which is connected to a pulling handle (1); A guide wire (3), wherein the guide wire (3) is connected to the other end of the pulling rod (2); A collar (4), the collar (4) being connected to an end of the guide wire (3) away from the pulling rod (2); An outer sheath tube (5); a receiving space is provided inside the outer sheath tube (5), and the guide wire (3) and the pulling rod (2) are capable of sliding in the receiving space; A guide wire (7), the guide wire (7) cooperates with the collar (4) and the outer sheath (5) and is used for fixed connection to the ureter.

2. The laparoscopic ureteral fusion device according to claim 1, characterized in that: The guide wire (3) is a deformable metal wire.

3. The laparoscopic ureteral fusion device according to claim 1, characterized in that: It also includes an anti-slip structure (6), which is arranged on the side of the pulling handle (1).

4. The laparoscopic ureteral fusion device according to claim 1, characterized in that: The outer sheath tube (5) is a tubular structure with openings at both ends.

5. The laparoscopic ureteral fusion device according to claim 1, characterized in that: The outer sheath (5) is made of a medical flexible material.

6. The laparoscopic ureteral fusion device according to claim 1, characterized in that: The outer sheath (5) and the guide wire (3) are of a J-shaped structure.

7. The laparoscopic ureteral fusion device according to claim 1, characterized in that: The maximum diameter of the outer wall of the outer sheath tube (5) is 2 mm to 9 mm.

8. The laparoscopic ureteral fusion device according to claim 1, characterized in that: The guide wire (7) is connected to the ligation clamp, and the length of the guide wire (7) reserved from the connection is 50 mm to 100 mm.

9. The laparoscopic ureteral fusion device according to claim 1, characterized in that: The maximum diameter of the outer ring of the collar (4) is smaller than the inner wall diameter of the outer sheath tube (5), and the collar (4) can slide in the accommodating space of the outer sheath tube (5).

10. The laparoscopic ureteral fusion device according to claim 7, characterized in that: The inner ring wall of the collar (4) is provided with an anti-loosening structure.

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