Uterus traction device

Abstract

The utility model relates to a uterus retractor which comprises a hollow pipe and a connecting rod, a fixing plate is fixedly installed at one end of the hollow pipe, one end of the connecting rod penetrates through the fixing plate to stretch into the hollow pipe and is fixedly provided with a moving block, and L-shaped clamping plates are hinged to the two sides of the end, away from the connecting rod, of the moving block. The two clamping plates are oppositely arranged, and the opposite ends of the two clamping plates are in a spine shape. The other end of the connecting rod is located outside the hollow pipe and fixedly provided with a pressing plate, and the connecting rod is sleeved with a spring. The utility model has the beneficial effects that: during an operation, a small hole of millimeter is appropriately formed in the abdomen of a patient, at the moment, the hollow tube extends into the patient through the small hole, and the hollow tube is moved to the bottom of the uterus under the guidance of a laparoscope; in the operation process, compression of a traditional uterus manipulator on the gap between the cervix uteri and the bladder is avoided, the operation view is clearer, the operation difficulty is greatly lowered, the bleeding amount is greatly reduced, and the operation time is greatly shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a uterine retractor. Background Technique

[0002] In 2018, two clinical studies on cervical cancer were published in the New England Journal of Medicine, which found that the prognosis of patients with early-stage cervical cancer who underwent minimally invasive radical hysterectomy was lower than that of the laparotomy group. This has put the current laparoscopic surgery for cervical cancer in controversy. Experts at home and abroad believe that the use of a uterine manipulator during laparoscopic surgery may be an important reason for tumor dissemination and an increased recurrence rate in patients with cervical cancer. Therefore, it is necessary to develop and promote tumor-free principle uterine retraction surgical instruments to replace the uterine manipulators, uterine cups and other instruments used in traditional laparoscopic surgery, so as to reduce the risk of local tumor metastasis caused by uterine manipulation and improve the prognosis of laparoscopic treatment of cervical cancer. At the same time, the use of a uterine retractor avoids the compression of the cervical and bladder spaces by the uterine manipulator, making the surgical field clearer and greatly reducing the surgical difficulty, blood loss and surgical time. Content of the Utility Model

[0003] The purpose of the utility model is to provide a uterine retractor to solve the above problems existing in the prior art.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A uterine retractor includes a hollow tube and a connecting rod. One end of the hollow tube is fixedly installed with a fixing plate. One end of the connecting rod passes through the fixing plate and extends into the interior of the hollow tube, and is fixedly installed with a moving block. Both sides of the end of the moving block away from the connecting rod are hinged with L-shaped clamping plates. The two clamping plates are arranged oppositely, and the opposite ends are both spiked; the other end of the connecting rod is located outside the hollow tube and is fixedly installed with a pressing plate. A spring is sleeved on the connecting rod, and both ends of the spring are abutted against the fixing plate and the pressing plate respectively.

[0006] The beneficial effects of the present utility model are as follows: During the operation, a small hole of - millimeters is appropriately opened in the patient's abdomen. At this time, the hollow tube is inserted into the patient through the small hole. Under the guidance of the laparoscope, the hollow tube is moved to the bottom of the uterus. By pressing the pressing plate through the relative fixing plate, the pressing plate drives the moving block to move through the connecting rod, so that the two clamping plates at one end of the moving block can smoothly extend out of the hollow tube. Since one side of the two clamping plates is no longer limited by the hollow tube, the two clamping plates open at a certain angle. Subsequently, the pressing plate is released, so that the pressing plate is reset under the drive of the spring, thereby driving the moving block to be reset, so that the two clamping plates are limited by the inner wall of the hollow tube during the movement, and the two clamping plates gradually close, so that the spiked ends of the clamping plates can smoothly penetrate into the uterine muscle to achieve the fixation of the uterus. At this time, only by driving the hollow tube to move can the traction work of the uterus be completed; During the above operation process, the use of the uterine retractor avoids the compression of the cervical and bladder spaces by the uterine manipulator, makes the surgical field of view clearer, and greatly reduces the surgical difficulty, blood loss and surgical time.

[0007] On the basis of the above technical solution, the present utility model can also be improved as follows.

[0008] Further, buffer blocks with an isosceles trapezoidal cross-section are fixedly installed on the surfaces of the opposite sides of the two clamping plates.

[0009] Further, sliding grooves are opened on the inner walls of both sides of the hollow tube, and sliding blocks slidably connected to the inner walls of the sliding grooves are fixedly installed on the surfaces of both sides of the moving block.

[0010] Further, rubber pads are fixedly installed on the surfaces of the opposite sides of the fixing plate and the pressing plate.

[0011] Further, a coating plate is fixedly sleeved on the surface of the hollow tube, and a coating is applied on the surface of the coating plate.

[0012] Further, the coating plate is made of perfluoroethylenepropylene, and the coating is made of medical-grade silicone paint. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 is a schematic diagram of the structure of the sliding groove, the sliding block and the moving block of the present utility model;

[0015] Figure 3 is the present utility model Figure 1 enlarged view at A in.

[0016] In the drawings, the list of components represented by each reference numeral is as follows:

[0017] 1. Hollow tube; 2. Fixed plate; 3. Connecting rod; 4. Pressing plate; 5. Spring; 6. Moving block; 7. Clamping plate; 8. Buffer block; 9. Chute; 10. Slide block; 11. Rubber pad; 12. Coated plate. Detailed implementation manner

[0018] The principles and features of the present utility model will be described below in conjunction with the accompanying drawings. The examples cited are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0019] As Figures 1 to 3 shown, Embodiment 1 of the present utility model is a uterine retractor, which includes a hollow tube 1 and a connecting rod 3. One end of the hollow tube 1 is fixedly installed with a fixed plate 2. One end of the connecting rod 3 passes through the fixed plate 2 and extends into the interior of the hollow tube 1, and a moving block 6 is fixedly installed. On both sides of the end of the moving block 6 away from the connecting rod 3, there are hinged L-shaped clamping plates 7. The two clamping plates 7 are arranged oppositely, and the opposite ends are both spiked; the other end of the connecting rod 3 is located outside the hollow tube 1 and is fixedly installed with a pressing plate 4. A spring 5 is sleeved on the connecting rod 3, and the two ends of the spring 5 are respectively abutted against the fixed plate 2 and the pressing plate 4.

[0020] During the operation, a 3-5 mm small hole is appropriately opened in the patient's abdomen. At this time, the hollow tube 1 is inserted into the patient through the small hole. Under the guidance of the laparoscope, the hollow tube 1 is moved to the bottom of the uterus. By pressing the pressing plate 4 relative to the fixed plate 2, the pressing plate 4 drives the moving block 6 to move through the connecting rod 3, so that the two clamping plates 7 at one end of the moving block 6 can smoothly extend out of the hollow tube. Since one side of the two clamping plates 7 is no longer limited by the hollow tube 1, the two clamping plates 7 open at a certain angle. Subsequently, the pressing plate 4 is released, so that the pressing plate 4 is reset under the drive of the spring 5, and then drives the moving block 6 to be reset, so that the two clamping plates 7 are limited by the inner wall of the hollow tube 1 during the movement, so that the two clamping plates 7 gradually close, so that the spiked ends of the clamping plates 7 can smoothly penetrate into the uterine muscle to fix the uterus. At this time, only by driving the hollow tube 1 to move can the work of pulling the uterus be completed; during the above operation process, the use of the uterine retractor avoids the compression of the cervical and bladder spaces by the uterine manipulator, makes the surgical field of view clearer, and greatly reduces the surgical difficulty, bleeding volume and surgical time.

[0021] Specifically, a torsion spring is provided at the hinge joint between the moving block 6 and the clamping plate 7, so that the two clamping plates 7 are in an open state after extending out of the hollow tube 1 to clamp the uterine muscle.

[0022] Embodiment 2 of the present utility model is a uterine retractor. On the basis of Embodiment 1, buffer blocks 8 with an isosceles trapezoidal cross-section are fixedly installed on the opposite surfaces of the two clamping plates 7.

[0023] By setting a buffer block 8 on the clamping plate 7, when the clamping plate 7 retracts into the hollow tube 1, the buffer block 8 can protect the clamping plate 7, avoiding direct contact between the clamping plate 7 and the inner wall of the hollow tube 1, thereby reducing the wear degree of the clamping plate 7 and increasing the service life.

[0024] In Embodiment 3 of the present utility model, a uterine retractor, on the basis of Embodiment 1 or 2, sliding grooves 9 are provided on the inner walls of both sides of the hollow tube 1, and sliding blocks 10 slidably connected to the inner walls of the sliding grooves 9 are fixedly installed on both side surfaces of the moving block 6.

[0025] By setting the sliding groove 9 and the sliding block 10, it is convenient to support and guide the moving block 6, enabling the moving block 6 to move stably.

[0026] In Embodiment 4 of the present utility model, a uterine retractor, on the basis of any one of Embodiments 1 to 3, rubber pads 11 are fixedly installed on the opposite side surfaces of the fixed plate 2 and the pressing plate 4.

[0027] When using the device, the fingers of medical staff are often placed on the opposite side surfaces of the fixed plate 2 and the pressing plate 4. The rubber pad 11 has certain elasticity and buffering effect, which can absorb part of the reaction force generated during pressing, thereby reducing the pressure and discomfort on the fingers of medical staff; at the same time, the surface of the rubber pad 11 usually has a certain friction coefficient, which helps to increase the friction force between the fingers and the fixed plate 2 and the pressing plate 4, enabling medical staff to hold and control these components more stably during the operation process.

[0028] In Embodiment 5 of the present utility model, a uterine retractor, on the basis of any one of Embodiments 1 to 4, a coating plate 12 is fixedly sleeved on the surface of the hollow tube 1, and a coating is applied on the surface of the coating plate 12.

[0029] By setting the coating plate 12 and the coating, medical staff can divide multiple warning areas on the surface of the hollow tube 1. When operating the device, the distinct color of the coating can prompt medical staff to pay attention to the insertion depth, avoiding the hollow tube 1 from being inserted too deep.

[0030] In Embodiment 6 of the present utility model, a uterine retractor, on the basis of Embodiment 5, the coating plate 12 is made of perfluoroethylenepropylene, and the coating is a medical-grade silicone coating.

[0031] Generally, perfluoroethylenepropylene and medical-grade silicone coating are used, so that when the hollow tube 1 extends into the human body, the coating plate 12 and the coating will not cause allergic reactions or toxic reactions.

[0032] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A uterine retractor, characterized in that, It includes a hollow tube (1) and a connecting rod (3). One end of the hollow tube (1) is fixedly installed with a fixing plate (2). One end of the connecting rod (3) penetrates through the fixing plate (2) and extends into the interior of the hollow tube (1), and a moving block (6) is fixedly installed. On both sides of the end of the moving block (6) away from the connecting rod (3), there are hinged L-shaped clamping plates (7). The two clamping plates (7) are arranged oppositely, and the opposite ends are both spiky. The other end of the connecting rod (3) is located outside the hollow tube (1), and a pressing plate (4) is fixedly installed. A spring (5) is sleeved on the connecting rod (3), and the two ends of the spring (5) are respectively abutted against the fixing plate (2) and the pressing plate (4).

2. The uterine retractor according to claim 1, wherein On the surfaces of the opposite sides of the two clamping plates (7), there are fixedly installed buffer blocks (8) with an isosceles trapezoidal cross-section.

3. The uterine retractor according to claim 1, characterized in that, On both inner walls of the hollow tube (1), there are provided sliding grooves (9). On both surfaces of the moving block (6), there are fixedly installed sliders (10) that are slidably connected to the inner walls of the sliding grooves (9).

4. The uterine retractor according to claim 1, characterized in that, On the surfaces of the opposite sides of the fixing plate (2) and the pressing plate (4), there are fixedly installed rubber pads (11).

5. The uterine retractor according to claim 1, characterized in that, The surface of the hollow tube (1) is fixedly sleeved with a coating plate (12), and a coating is applied on the surface of the coating plate (12).

6. The uterine retractor according to claim 5, wherein The coating plate (12) is made of perfluoroethylenepropylene, and the coating is a medical-grade silicone coating.

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