Ultrasonic knife blood coagulation testing tool
By designing an ultrasonic knife coagulation test tool with a linear drive mechanism, the problem of low stability and controllability of the fluid pump in the prior art is solved, and automated and accurate testing of blood vessel rupture pressure is achieved, which improves the accuracy of the test results and reduces costs.
Patent Information
- Application Number
- CN202422156629.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-03
AI Technical Summary
The existing ultrasonic knife coagulation test device provides test fluid pressure through a fluid pump, which is not very stable and controllable, affects the accuracy of the test structure and is not conducive to reducing costs.
An ultrasonic knife blood coagulation test tool was designed, and a linear drive mechanism was used to linearly push the push handle of the syringe, so that the fluid pressure in the catheter gradually increased, realizing pressure testing of blood vessels. The tooling includes a syringe, catheter, pressure sensor, mounting seat, vascular joint and three-way valve, and automatically tests through a linear drive mechanism and a controller.
The structure of the test tooling is simplified, and the automated and precise test of blood vessel rupture pressure is realized, which improves the accuracy of the test results and reduces costs.
Smart Images
Figure CN223021515U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a coagulation test tooling for an ultrasonic scalpel, belonging to the technical field of medical device testing, especially the technical field of ultrasonic scalpel coagulation effect testing. Background Art
[0002] With the continuous improvement of medical level, the application of ultrasonic scalpels in the biomedical field is becoming more and more extensive. An ultrasonic scalpel is an electrosurgical device that can generate longitudinal mechanical vibration by converting electrical energy into mechanical energy, mainly used for cutting biological tissues and closing blood vessels. In surgical operations, quickly and effectively coagulating blood vessels is a very crucial technique. If blood vessels can be quickly and effectively closed, it can reduce bleeding, ensure a clean surgical field of view, and also shorten the operation time. Testing the coagulation effect of an ultrasonic scalpel is an important basis for evaluating the performance of the ultrasonic scalpel. The blood vessel rupture pressure value in the ultrasonic scalpel coagulation test is an important indicator for evaluating the performance of the ultrasonic scalpel. The rupture pressure of the blood vessel after coagulation should reach a certain range to avoid chronic bleeding of the blood vessel after coagulation, which is of great significance for the recovery of postoperative tissues and functions.
[0003] Existing ultrasonic scalpel coagulation test devices usually provide the fluid pressure for testing through a fluid pump. However, the stability and controllability of the fluid pump are not high, and the generated pulsed pressure may affect the accuracy of the test results; at the same time, it is not conducive to cost reduction. Summary of the Utility Model
[0004] In order to overcome the problems existing in the prior art, the utility model provides a coagulation test tooling for an ultrasonic scalpel, which is beneficial to simplifying the structure and providing more accurate test results. The specific technical solutions are as follows.
[0005] A coagulation test tooling for an ultrasonic scalpel, characterized by comprising: a linear drive mechanism, a syringe, a catheter, a pressure sensor, a mounting seat, and a blood vessel connector;
[0006] The syringe is detachably arranged on the mounting seat. One end of the catheter is connected to the syringe, and the other end is connected to the blood vessel connector. A three-way valve is arranged on the catheter, and the pressure sensor is connected to the three-way valve;
[0007] The linear drive mechanism is used to push the push handle of the syringe.
[0008] By adopting the above technical solution, the structure of the test tooling is greatly simplified. The linear drive mechanism linearly pushes the push handle of the syringe, so that the fluid pressure in the catheter gradually increases, thereby enabling a simple and accurate pressure test on the blood vessel connected to the blood vessel connector.
[0009] Furthermore, the linear drive mechanism is a lead screw and nut mechanism or a rack and pinion mechanism. Preferably, a lead screw and nut mechanism is adopted, which has higher driving accuracy.
[0010] Further, the mounting base is provided with a groove adapted to the syringe. When the syringe is placed in the groove, the syringe is easily fixed.
[0011] Further, a vertical screw is fixed on the mounting base, a pressing plate is sleeved on the screw, and a locking nut is arranged on the screw. The locking nut is located above the pressing plate. By tightening the locking nut, the syringe can be pressed tightly in the groove of the mounting base through the pressing plate. It is convenient to install and remove the syringe, and it is convenient to supplement the fluid in the syringe in time.
[0012] Further, the pressure sensor is connected to a pressure display. The pressure display is convenient for the tester to directly observe the actual pressure in the catheter.
[0013] Further, the pressure sensor is also connected to a controller, and the controller is also connected to the linear driving mechanism. Using the controller can realize automatic testing.
[0014] Further, a one-way valve is also arranged on the catheter. By arranging the one-way valve, when it is necessary to replace the syringe, the pressure in the catheter can also be guaranteed.
[0015] Further, a splash-proof baffle is also included, and the splash-proof baffle is arranged corresponding to the blood vessel joint. When the blood vessel ruptures under the action of the fluid pressure in the catheter, the splash-proof baffle can play a role in blocking the splashing of the fluid everywhere.
[0016] Compared with the prior art, the utility model simplifies the structure and helps to realize automatic and precise testing of the blood vessel rupture pressure. Description of the Drawings
[0017] Figure 1 is a schematic diagram of the testing tool of the utility model;
[0018] Figure 2 is a schematic diagram of the mounting base.
[0019] In the figure: linear driving mechanism 1, lead screw 1.1, slider 1.2, syringe 2, catheter 3, pressure sensor 4, mounting base 5, groove 5.1, screw 5.2, pressing plate 5.3, locking nut 5.4, blood vessel joint 6, three-way valve 7, pressure display 8, controller 9, splash-proof baffle 10. Detailed Embodiment
[0020] The following further describes the present utility model in detail with reference to the drawings.
[0021] See Figure 1 - Figure 2, An ultrasonic scalpel coagulation test tooling, which includes: a linear drive mechanism 1, a syringe 2, a catheter 3, a pressure sensor 4, a mounting seat 5, and a blood vessel connector 6;
[0022] One end of the catheter 3 is connected to the syringe 2, and the other end is connected to the blood vessel connector 6. A three-way valve 7 is provided on the catheter 3, and the pressure sensor 4 is connected to the three-way valve 7; the pressure sensor 4 is used to measure the fluid pressure in the catheter 3;
[0023] The syringe 2 contains fluid, preferably normal saline; the linear drive mechanism 1 is used to push the push handle of the syringe 2 to inject the fluid in the syringe 2 into the catheter 3 to provide fluid pressure for the catheter 3.
[0024] The blood vessel connector 6 preferably has a small metal tube, and the blood vessel to be tested (not shown) cut and coagulated by the ultrasonic scalpel is fixed on the blood vessel connector 6 by a nylon rope (not shown). The pressure sensor 4 is connected to a pressure display 8, and the pressure display 8 facilitates the tester to intuitively observe the real-time pressure in the catheter 3. The pressure sensor 4 is also connected to a controller 9, and the controller 9 is also connected to the linear drive mechanism 1.
[0025] Among them, the linear drive mechanism 1 is a lead screw nut mechanism or a rack and pinion mechanism. Preferably, a lead screw nut mechanism is adopted, and the driving accuracy is higher. The lead screw nut mechanism has a slider 1.2 driven by a lead screw 1.1, and the slider 1.2 abuts against the push handle of the syringe 2.
[0026] The syringe 2 is detachably arranged on the mounting seat 5, and the mounting seat 5 has a groove 5.1 adapted to the syringe 2. A vertical screw 5.2 is fixed on the mounting seat 5, a pressing plate 5.3 is penetrated on the screw 5.2, and a locking nut 5.4 is arranged on the screw 5.2, and the locking nut 5.4 is located above the pressing plate 5.3. By tightening the locking nut 5.4, the syringe can be pressed in the groove of the mounting seat 5 through the pressing plate 5.3. It is convenient to install and remove the syringe 2 and facilitate timely replenishment of the fluid in the syringe 2.
[0027] Preferably, a check valve (not shown) is also provided on the catheter 3. The check valve only allows the fluid to flow from the syringe to the catheter, and does not require the fluid in the catheter 3 to flow back to the syringe 2 through the check valve. By setting the check valve, the pressure in the catheter 3 can be guaranteed when the syringe 2 needs to be replaced.
[0028] A splash-proof baffle 10 is also provided corresponding to the blood vessel connector 6. When the blood vessel ruptures under the action of the fluid pressure in the catheter 3, the splash-proof baffle 10 can play a role in blocking the splashing of the fluid everywhere.
[0029] The test principle of the tooling of the present utility model is as follows: Use an ultrasonic scalpel to cut and coagulate the blood vessel to be tested, and then tie the blood vessel to the blood vessel connector 6 through a nylon rope. The blood vessel connector 6 is connected to both the blood vessel to be tested and the catheter 3. Install the syringe 2 filled with fluid on the mounting seat 5, and control the linear drive mechanism 1 to slowly inject fluid into the catheter 3 through the controller 9. When the pressure measured by the pressure sensor 4 reaches a certain value, the syringe 2 can be temporarily stopped to achieve the pressure holding test of the blood vessel. After the pressure holding ends, continue to inject fluid into the catheter 3 until the blood vessel is broken by the fluid, and the pressure display 8 or the controller 9 records the maximum pressure value, and the test ends.
[0030] The embodiments of the present utility model have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and the features in the embodiments of the present utility model can be combined with each other. The present utility model is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present utility model, those of ordinary skill in the art can also make many forms without departing from the purpose of the present utility model and the scope protected by the claims. All of these are within the protection scope of the present utility model.
Claims
1. An ultrasonic scalpel coagulation test tool, characterized in that: include: Linear drive mechanism (1), syringe (2), catheter (3), pressure sensor (4), mounting seat (5), and blood vessel connector (6); The syringe (2) is detachably mounted on the mounting seat (5); one end of the catheter (3) is connected to the syringe (2), and the other end is connected to the blood vessel connector (6); a three-way valve (7) is provided on the catheter (3), and the pressure sensor (4) is connected to the three-way valve (7); The linear drive mechanism (1) is used to push the push handle of the syringe (2).
2. The ultrasonic scalpel coagulation test tool according to claim 1, characterized in that: The linear drive mechanism (1) is a screw-nut mechanism or a gear rack mechanism.
3. The ultrasonic scalpel coagulation test tool according to claim 1, characterized in that: The mounting seat (5) has a groove (5.1) adapted to the syringe (2).
4. The ultrasonic scalpel coagulation test tool according to claim 3, characterized in that: A vertical screw rod (5.2) is fixed on the mounting seat (5), a pressure plate (5.3) is passed through the screw rod (5.2), a locking nut (5.4) is arranged on the screw rod (5.2), and the locking nut (5.4) is located above the pressure plate (5.3).
5. The ultrasonic scalpel coagulation test tool according to claim 1, characterized in that: The pressure sensor (4) is connected to a pressure display (8).
6. The ultrasonic scalpel coagulation test tool according to claim 5, characterized in that: The pressure sensor (4) is also connected to a controller (9), and the controller (9) is also connected to the linear drive mechanism (1).
7. The ultrasonic scalpel coagulation test tool according to claim 1, characterized in that: The conduit (3) is also provided with a one-way valve.
8. The ultrasonic scalpel coagulation test tool according to claim 1, characterized in that: It also includes a splash shield (10), wherein the splash shield (10) is arranged corresponding to the blood vessel connector (6).