Grasping type supporting traction device under laparoscope

Abstract

The grasping type supporting tractor under the laparoscope comprises a puncture assembly and a clamp assembly, and the puncture assembly comprises a puncture outer pin and a puncture inner core penetrating through the puncture outer pin in a sliding mode; a positioning groove is formed in the inner side of the top of the puncture outer pin, the top of a clamp tube of the clamp assembly is matched in the positioning groove, and the outer portion of the clamp tube is matched with the inner portion of the puncture outer pin in a sliding mode. An elastic buckle is arranged on one side of the top of the forceps tube, a limiting ring is arranged on the outer side of the top of the puncture outer pin, and the elastic buckle is clamped on the limiting ring. According to the grasping type supporting tractor under the laparoscope, suture lines are omitted, so that the operation cost of a patient is reduced; the puncture assembly and the clamp assembly are combined for use through the elastic buckle, the positioning groove, the limiting ring and other structures, so that the retractor can be fixed without being held by a surgeon, an assistant does not need to occupy an operation channel, and the retractor can better assist the surgeon to conduct other surgical operations.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a laparoscopic grasping support retractor. Background Art

[0002] With the development of surgical technology and the improvement of medical level, laparoscopic minimally invasive surgery is increasingly widely used in clinical practice. Laparoscopic surgery is a procedure in which the surgeon uses an extended laparoscopic handheld instrument to enter the patient's body through a natural cavity or a constructed puncture channel to complete operations such as tissue grabbing, shearing, separation, and coagulation. At present, when completing abdominal surgery in clinic, it is often encountered that organ sagging obstructs the surgical field of view and affects the surgical operation.

[0003] In order to expose the surgical field, the following two methods are usually used to pull the sagging organs. 1. The assistant pulls the organs with non-destructive forceps to lift the sagging organs; Disadvantages: The assistant occupies an operating channel, and only one hand is left to assist the surgeon in the operation, resulting in insufficient exposure of the surgical field and affecting the progress of the operation; 2. Use sutures to insert needles at two points on the abdominal wall, and pull the sutures to lift the sagging organs; Disadvantages: The operation is time-consuming, and the angle, height and position of the pull cannot be adjusted at any time, which affects the exposure of the surgical field.

[0004] Based on the above, the present application proposes a laparoscopic grasping support retractor to solve the problem of inconvenience in exposing the surgical field of view. Utility Model Content

[0005] The utility model provides a laparoscopic grasping support retractor, which solves the problems mentioned in the above background technology.

[0006] The technical solution of the utility model is achieved in this way:

[0007] A laparoscopic grasping support retractor comprises a puncture assembly and a clamp assembly, wherein the puncture assembly comprises a puncture outer pin and a puncture inner core slidingly penetrating the puncture outer pin;

[0008] A positioning groove is provided on the inner side of the top of the piercing outer pin, and the top of the clamp tube of the clamp assembly is adapted in the positioning groove, and its outer side is slidably adapted to the inner side of the piercing outer pin; an elastic buckle is provided on one side of the top of the clamp tube, and a limiting ring is provided on the outer side of the top of the piercing outer pin, and the elastic buckle is engaged on the limiting ring.

[0009] Furthermore, the elastic buckle is composed of an elastic member and a buckle handle, wherein the elastic member is located between the buckle handle and the clamp tube and connects the two.

[0010] Furthermore, an elastic bent arm is fixed to the outer side of the top of the clamp tube, a clamp arm is fixed to the side of the elastic bent arm away from the clamp tube, the clamp arm slides through the clamp tube, and a plurality of elastic clamps are provided at the bottom end of the clamp arm, and the elastic clamps are clamped to each other due to the internal space of the clamp tube.

[0011] Furthermore, a guide groove is provided in the clamp tube, a slide rail extending to the top of the guide groove is slidably adapted in the guide groove, a soft strip is fixed to the bottom of the slide rail, and one end of the soft strip away from the slide rail is fixed to the bottom of the guide groove.

[0012] Furthermore, a mounting block is provided on the top of the clamp tube, and a through hole is opened in the mounting block. The through hole corresponds to the guide groove and is slidably adapted to the outside of the slide rail.

[0013] Furthermore, an adjusting screw is threadedly mounted on the mounting block, a plurality of protrusions are arranged on one side of the slide rail, and one end of the adjusting screw abuts against the outside of the slide rail where an adjacent protrusion is located.

[0014] Furthermore, one side of the slide rail, the through hole and the guide groove is in a dovetail shape, and the dovetail of the slide rail is respectively matched with the dovetail of the through hole and the guide groove.

[0015] Beneficial effects of the technical solution provided by this application:

[0016] 1. The laparoscopic grasping support retractor reduces the surgical cost of the patient by eliminating the use of sutures. The puncture assembly and the clamp assembly are combined by using structures such as elastic buckles, positioning grooves and limit rings, so that the retractor can be fixed without the need for the surgeon to hold it, and does not require an assistant to occupy an operating channel, so that it can better assist the surgeon in performing other surgical operations.

[0017] 2. The soft strip in the design of the laparoscopic grasping support retractor can adjust the size of the support surface according to the intraoperative operating space, and the slide rail is fixed by the adjustment screw of the mounting block to achieve an ideal support effect. This design provides a more convenient effect of exposing the surgical field of view and adapts to different surgical needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the puncture assembly of the utility model;

[0020] Figure 2This is a schematic diagram of the puncture export of the utility model;

[0021] Figure 3 This is a schematic diagram of the laparoscopic grasping support retractor of the utility model;

[0022] Figure 4 This is a schematic diagram of the explosion of the laparoscopic grasping support retractor of the utility model;

[0023] Figure 5 It is a partial schematic diagram of the elastic buckle of the utility model;

[0024] Figure 6 It is a partial schematic diagram of the clamp pipe, mounting block and slide rail of the utility model;

[0025] Figure 7 This is a schematic diagram of practical embodiment 2.

[0026] In the figure:

[0027] 100 puncture assembly, 110 puncture outer pin, 111 positioning groove, 112 limiting ring, 120 puncture inner core;

[0028] 200 clamp assembly, 210 clamp tube, 211 guide groove, 212 flexible strip, 213 slide rail, 231a protrusion, 214 guide hole, 215 expansion groove, 220 clamp arm, 221 elastic clamp, 230 elastic curved arm, 240 elastic buckle, 241 elastic member, 242 buckle handle, 250 mounting block, 251 through hole, 252 adjusting screw. DETAILED DESCRIPTION

[0029] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example 1

[0031] Reference Figure 1-6 A laparoscopic grasping support retractor comprises a puncture assembly 100 and a clamp assembly 200, wherein the puncture assembly 100 comprises a puncture outer pin 110 and a puncture inner core 120 which slides through the puncture outer pin 110; a positioning groove 111 is provided on the inner side of the top of the puncture outer pin 110, the top of the clamp tube 210 of the clamp assembly 200 is fitted in the positioning groove 111, and its outer portion is slidably fitted with the inner portion of the puncture outer pin 110; an elastic buckle 240 is provided on one side of the top of the clamp tube 210, and a limiting ring 112 is provided on the outer side of the top of the puncture outer pin 110, and the elastic buckle 240 is engaged with the limiting ring 112.

[0032] The positioning groove 111 on the inner side of the top of the puncture outer pin 110 in the puncture assembly 100 is adapted to the top of the clamp tube 210 of the clamp assembly 200 to achieve precise positioning. This design ensures that the puncture assembly and the clamp assembly can be stably combined during the operation, improving the accuracy and reliability of the surgical operation. The elastic buckle 240 on the top of the clamp tube 210 and the retaining ring 112 on the outer side of the top of the puncture outer pin 110 are designed to fit together, providing a flexible fixing mechanism. The elastic buckle 240 allows the clamp tube 210 to slide and fit inside the puncture outer pin 110, which means that the position of the clamp tube 210 can be adjusted as needed during the operation to adapt to different surgical operation requirements.

[0033] In some embodiments, the elastic buckle 240 is composed of an elastic member 241 and a buckle handle 242 , wherein the elastic member 241 is located between the buckle handle 242 and the clamp tube 210 and connects the two.

[0034] The combination of the elastic member 241 and the buckle handle 242 forms an elastic buckle 240, and the elastic member 241 is located between the buckle handle 242 and the clamp tube 210, ensuring that the buckle can be firmly engaged on the limit ring 112 of the puncture outer pin 110, thereby maintaining the stable position of the clamp assembly during the operation. The design of the elastic buckle 240 allows the clamp assembly 200 to be easily installed and removed from the puncture assembly 100. The surgeon can quickly fix the clamp assembly 200 on the puncture outer pin 110 by operating the elastic buckle 240, or remove it when necessary, which improves the convenience of the surgical operation. The presence of the elastic member 241 provides a certain degree of elasticity, which means that during the operation, even if there is a slight movement or pressure change, the elastic buckle 240 can maintain its connection state, while allowing a certain degree of fine-tuning to adapt to the needs of the surgical operation. The elastic member 241 includes but is not limited to products such as springs and elastic pads.

[0035] In some embodiments, an elastic curved arm 230 is fixed to the outer side of the top of the clamp tube 210, and a clamp arm 220 is fixed to the side of the elastic curved arm 230 away from the clamp tube 210. The clamp arm 220 slides through the clamp tube 210, and a plurality of elastic clamps 221 are provided at the bottom end of the clamp arm 220. The elastic clamps 221 are restricted by the internal space of the clamp tube 210 and are tightly held together.

[0036] The design of the elastic curved arm 230 and the clamp arm 220 allows the clamp arm 220 to slide freely inside the clamp tube 210, which provides a flexible grasping mechanism, so that the clamp arm 220 can adjust its position as needed to adapt to tissues of different shapes and sizes. The elastic clamps 221 at the bottom of the clamp arm 220 hold each other tightly under the limitation of the internal space of the clamp tube 210. This design ensures stability when grasping tissues and prevents tissues from slipping during surgery. The sliding design of the clamp arm 220 allows the doctor to adjust the opening and closing of the clamp through simple operations, thereby achieving effective grasping and release of tissues and simplifying the surgical operation process.

[0037] In some embodiments, a guide groove 211 is opened in the clamp tube 210, and a slide rail 213 extending to the top of the guide groove 211 is slidably adapted in the guide groove 211, and a soft strip 212 is fixed to the bottom of the slide rail 213, and one end of the soft strip 212 away from the slide rail 213 is fixed to the bottom of the guide groove 211.

[0038] The design of the soft strip 212 allows it to be deformed inside the clamp tube 210 according to surgical needs. Through the sliding cooperation between the guide groove 211 and the slide rail 213, the soft strip 212 can be arched outward when subjected to a downward driving force to form a semicircular or elliptical support space. This adaptive support capability enables the retractor to better adapt to different surgical environments and tissue structures. The guide groove 211 provides a precise sliding path for the slide rail 213 to ensure that the movement of the slide rail 213 inside the clamp tube 210 is orderly and controllable. This helps the doctor to accurately adjust the position and shape of the support retractor during surgery to achieve the best surgical effect. The design of the guide groove 211 simplifies the deformation process of the soft strip 212. The guide groove 211 is connected to the outside, and the doctor can achieve the deformation of the soft strip 212 through simple operations (such as pushing or pulling), thereby quickly adjusting the function of the support retractor.

[0039] In addition, the outer portion of the slide rail 213 is flush with the outer portion of the clamp tube 210 , thereby preventing damage to organs or other tissues due to the up and down sliding movement of the slide rail 213 .

[0040] In some embodiments, a mounting block 250 is disposed on the top of the clamp tube 210 . A through hole 251 is formed in the mounting block 250 . The through hole 251 corresponds to the guide groove 211 and is slidably adapted to the outer portion of the slide rail 213 .

[0041] The through hole 251 in the mounting block 250 is slidably adapted to the outside of the slide rail 213, allowing the slide rail 213 to be slidably guided inside the mounting block 250. This design enables the slide rail 213 to improve the sliding stability.

[0042] In some embodiments, an adjusting screw 252 is threadedly mounted on the mounting block 250 , a plurality of protrusions 213 a are disposed on one side of the slide rail 213 , and one end of the adjusting screw 252 abuts against the outside of the slide rail 213 where an adjacent protrusion 213 a is located.

[0043] The adjusting screw 252 is in contact with the outside of the soft strip 212 through a thread, providing a stable fixing method. This ensures that during the operation, the soft strip 212 can maintain the required shape and position and will not be displaced due to internal pressure or external operation. The setting of the protrusion 213a interacts with the adjusting screw 252. The adjusting screw 252 is similar to a latch and is limited to the outside of the slide rail 213 where the adjacent protrusion 213a is located. It is adjusted according to the gap between different adjacent protrusions 213a, so that the doctor can adjust the adjusting screw 252 at different heights of the protrusion 213a according to the needs of the operation, thereby supporting the exposed organs that block the field of view to expand the surgical field of view and operating space.

[0044] In some embodiments, one side of the slide rail 213 , the through hole 251 and the guide groove 211 is in a dovetail shape, and the dovetail of the slide rail 213 is matched with the dovetail of the through hole 251 and the guide groove 211 respectively.

[0045] The dovetail structure generally refers to a wedge-shaped or inclined design that is often used in mechanical connections to provide stable fit and positioning. The dovetail of the slide rail 213 matches the dovetail of the perforation 251 and the guide slot 211, which means that these components can fit tightly when connected, providing good positioning and stability. The dovetail structure provides a mechanical locking mechanism that prevents the slide rail 213 from sliding or shifting in the perforation 251 and the guide slot 211 when it moves. This locking mechanism enhances the stability of the retractor during surgery.

[0046] Working principle:

[0047] First, the doctor selects a suitable puncture point on the patient's abdominal wall and performs puncture using the puncture assembly 100. The puncture outer pin 110 and the puncture inner core 120 work together to penetrate the skin and the abdominal wall and enter the abdominal cavity. After the puncture is successful, the puncture inner core 120 is pulled out, leaving the puncture outer pin 110 in the abdominal wall.

[0048] Next, the clamp assembly 200 is assembled with the puncture outer pin 110, the clamp tube 210 passes through the puncture outer pin 110 and enters the abdominal cavity, the puncture outer sheath 110 is pulled upward to move upward along the clamp tube 210, and the elastic buckle 240 at the top of the clamp tube 210 is engaged with the limit ring 112 at the top of the puncture outer pin 110. The clamp assembly 200 uses the puncture outer pin 110 to complete the action of entering the abdominal cavity, and the puncture outer pin 110 is separated from the abdominal wall and the skin surface through the elastic buckle 240, and the tissue around the puncture port wraps the clamp tube 210 to prevent pneumoperitoneum leakage and the possibility of the tip of the puncture outer sheath 110 damaging the tissue.

[0049] The doctor pushes the clamp assembly 200 to make the clamp tube 210 slide along the inside of the puncture outer pin 110 until the clamp 221 reaches the tissue to be pulled; the clamp arm 220 is pressed to make it slide in the mounting block 250. During this process, the clamp arm 220 slides in the clamp tube 210 and extends downward, and the elastic clamp 221 at the bottom of the clamp arm 220 is not limited by the internal space of the clamp tube 210 and expands outward. When the expanded elastic clamp 221 is aligned with the pulled tissue, the doctor stops pressing the clamp arm 220 and releases it, and the clamp arm 220 rises in the clamp tube 210 by the elastic pressure of the elastic curved arm 230, and the elastic clamp 221 on the clamp arm 220 is limited by the space of the clamp tube 210 and closes to grasp the tissue to be pulled.

[0050] After completing the above operations, in order to further expose the surgical field, it is necessary to operate the soft strip 212. At this time, the soft strip 212 is in an unexpanded state, one end is fixed to one side of the guide groove 211, and the other end is fixed to the slide rail 213. At this time, the soft strip 212 maintains a straight or nearly straight state inside the clamp tube 210. When it is necessary to support the sagging organ, the doctor applies a downward driving force by operating the slide rail 213 on the clamp tube 210. This driving force acts on the soft strip 212, causing it to deform in the guide groove 211. The design of the guide groove 211 communicating with the outside allows the soft strip 212 to arch outward when under pressure, forming a semicircular or elliptical support structure. This deformation provides the required support force, allowing the sagging organ to be lifted, thereby improving the surgical field of view.

[0051] After the expansion, the shape and position of the soft strip 212 need to remain stable. This is usually achieved by adjusting the screw 252. The adjusting screw 252 abuts against the outside of the slide rail 213. By rotating the adjusting screw 252, it can be limited to the gap between adjacent protrusions 213a at a certain place on the slide rail 213, thereby fixing the position of the soft strip 212 in the guide groove 211 to ensure that it will not retract or move during the operation. If it is necessary to fine-tune the position or shape of the support retractor, the doctor can achieve it by fine-tuning the adjusting screw 252 to correspond to the gap position of different adjacent protrusions 213a. This fine-tuning allows the doctor to make small adjustments without completely releasing the soft strip 212 to adapt to minor changes during the operation. When the operation is over or the state of the support retractor needs to be changed, the doctor can release the soft strip 212 by loosening the adjusting screw 252. At this time, the soft strip 212 will return to the unexpanded state, and the support retractor can be removed or readjusted.

[0052] Example 2

[0053] In this embodiment, in order to further reduce the surgical risk and avoid damage to the internal organs caused by the up and down sliding of the slide rail 213, the guide groove 211 can be changed into a guide hole 214. Figure 7 The slide rail 213 slides through the guide hole 214, and an expansion groove 215 connected to the guide 214 and communicated with the outside is opened at the position in the clamp tube 210 corresponding to the position where the soft strip 212 is located, so that the slide rail 213 can slide safely and effectively without damaging the organ. In addition, it can ensure that the soft strip 212 is deformed and bent at the expansion groove 215 to support the organ.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laparoscopic grasping support retractor, comprising a puncture assembly (100) and a clamp assembly (200), characterized in that: The puncture assembly (100) comprises a puncture outer pin (110) and a puncture inner core (120) slidably penetrating the puncture outer pin (110); A positioning groove (111) is provided on the inner side of the top of the piercing outer pin (110), and the top of the clamp tube (210) of the clamp assembly (200) is fitted in the positioning groove (111), and its outer portion is slidably fitted with the inner portion of the piercing outer pin (110); an elastic buckle (240) is provided on one side of the top of the clamp tube (210), and a limiting ring (112) is provided on the outer side of the top of the piercing outer pin (110), and the elastic buckle (240) is engaged with the limiting ring (112).

2. The laparoscopic grasping support retractor according to claim 1, characterized in that: The elastic buckle (240) is composed of an elastic member (241) and a buckle handle (242), wherein the elastic member (241) is located between the buckle handle (242) and the clamp tube (210) and connects the two.

3. The laparoscopic grasping support retractor according to claim 1, characterized in that: An elastic curved arm (230) is fixed on the outer side of the top of the clamp tube (210), a clamp arm (220) is fixed on the side of the elastic curved arm (230) away from the clamp tube (210), the clamp arm (220) slides through the clamp tube (210), and a plurality of elastic clamps (221) are provided at the bottom end of the clamp arm (220), and the elastic clamps (221) are mutually clamped due to the internal space of the clamp tube (210).

4. The laparoscopic grasping support retractor according to claim 1, characterized in that: The clamp tube (210) is provided with a guide groove (211), a slide rail (213) extending to the top of the guide groove (211) is slidably adapted in the guide groove (211), a soft strip (212) is fixed at the bottom of the slide rail (213), and one end of the soft strip (212) away from the slide rail (213) is fixed to the bottom of the guide groove (211).

5. The laparoscopic grasping support retractor according to claim 4, characterized in that: A mounting block (250) is provided on the top of the clamp tube (210), and a through hole (251) is provided in the mounting block (250). The through hole (251) corresponds to the guide groove (211) and is slidably adapted to the outside of the slide rail (213).

6. The laparoscopic grasping support retractor according to claim 5, characterized in that: An adjusting screw (252) is threadedly mounted on the mounting block (250), a plurality of protrusions (213a) are provided on one side of the slide rail (213), and one end of the adjusting screw (252) abuts against the outside of the slide rail (213) where an adjacent protrusion (213a) is located.

7. The laparoscopic grasping support retractor according to claim 5, characterized in that: One side of the slide rail (213), the through hole (251) and the guide groove (211) is in a dovetail shape, and the dovetail of the slide rail (213) is respectively matched with the dovetail of the through hole (251) and the guide groove (211).

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