Negative pressure storage device for soft tumor samples in brain surgery

Abstract

The invention relates to the technical field of medical instruments, and particularly discloses a negative pressure storage device for soft tumor samples in brain surgery, which comprises a hard closed cylinder, a device inlet pipe, a device outlet pipe and a soft storage bag, the device inlet pipe and the device outlet pipe are respectively arranged at two ends of the hard closed cylinder in a sealed and communicated manner, and the soft storage bag is arranged in the hard closed cylinder. And the soft storage bag is arranged in the hard closed cylinder and is communicated with the device inlet pipe. The tumor taking efficiency can be effectively improved, the overall operation time is shortened, the risk of sample loss and the operation risk are reduced, and the integrity of tumor samples and the accuracy of pathological diagnosis are guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a negative pressure collection device for soft tumor samples in brain surgery. Background Art

[0002] In the current field of brain tumor treatment, especially for complex cases such as pituitary tumors and gliomas, the technology of collecting tumor samples during surgery still faces significant challenges. Traditional surgical methods, whether open craniotomy or minimally invasive endoscopic surgery, mainly rely on traditional instruments, such as various tumor forceps for sample extraction. However, due to the soft texture of brain tumors, especially the small size of pituitary microadenomas, it is difficult for traditional tumor forceps to stably and effectively capture and completely remove tumor tissue. This limitation directly leads to the inefficiency of the tumor removal process, forcing surgeons to repeatedly operate the tumor forceps, and greatly increases the risk of tumor sample loss, limiting the accuracy of pathological diagnosis, and may delay or affect the formulation of subsequent treatment plans. At the same time, repeated attempts to remove tumors invisibly prolong the operation time, which not only increases the patient's anesthesia burden and increases the potential risks during the operation, but may also have an adverse effect on the postoperative recovery process.

[0003] Therefore, we propose a negative pressure collection device for soft tumor samples in brain surgery to solve the above technical problems. Summary of the invention

[0004] In order to solve the technical problems existing in the above-mentioned prior art, the present invention proposes a negative pressure collection device for soft tumor samples in brain surgery.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A negative pressure collection device for soft tumor samples in brain surgery comprises a hard sealed cylinder, a device inlet pipe, a device outlet pipe and a soft collection bag. The device inlet pipe and the device outlet pipe are respectively and sealedly connected at the two ends of the hard sealed cylinder. The soft collection bag is arranged in the hard sealed cylinder and is connected to the device inlet pipe.

[0007] In a further technical solution, the inlet pipe of the device is formed by a plurality of conical structural segments continuously overlapped, and the upper diameter of each conical structural segment is smaller than the lower diameter.

[0008] In a further technical solution, one end of the hard sealed cylinder is provided with an opening and a sealing rubber plug that seals the opening, the device inlet pipe is penetrated and arranged on the sealing rubber plug, and the soft storage bag is detachably connected to the bottom of the sealing rubber plug.

[0009] In a further technical solution, a mounting tube is provided below the sealing rubber plug, the mounting tube is connected to the device inlet tube, and the soft storage bag is sleeved on the mounting tube.

[0010] In a further technical solution, a plurality of annular patterns are arranged vertically on the outer surface of the sealing rubber plug.

[0011] In a further technical solution, a three-way valve is provided on the outlet pipe of the device.

[0012] In a further technical solution, the hard sealed cylinder is made of a transparent material.

[0013] In a further technical solution, the soft storage bag is made of a transparent or translucent flexible material.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0015] Improve tumor collection efficiency: Through the negative pressure principle, this negative pressure collection device can quickly and effectively capture and collect soft tumor tissue, reducing the number of operations and operation time of the surgeon, thereby effectively improving the efficiency of tumor sample collection.

[0016] Reduce the risk of sample loss: The design of the soft storage bag and hard sealed tube can effectively prevent tumor samples from being lost or contaminated during the collection process, ensuring the integrity of tumor samples and the accuracy of pathological diagnosis, and helping to develop more accurate treatment plans for patients.

[0017] Reduce surgical risks: Since this negative pressure collection device can collect tumor samples efficiently and completely, it reduces the time for repeated sampling during surgery, thereby shortening the overall operation time and reducing the patient's anesthesia burden and surgical risks.

[0018] Easy to operate: The device has a simple structure and is easy to operate, making it convenient for surgeons to use during surgery, thus improving the fluency and efficiency of the surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a static pressure schematic diagram of the flow trajectory simulated and calculated by the present invention;

[0022] Figure 3 It is a velocity schematic diagram of the flow trajectory simulated and calculated by the present invention.

[0023] Figure numerals: 1-hard sealed cylinder, 2-device inlet pipe, 3-device outlet pipe, 4-soft storage bag, 5-sealing rubber plug, 6-installation tube, 7-ring pattern, 8-three-way valve. DETAILED DESCRIPTION

[0024] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme 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 only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application usually described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0025] See also Figure 1 The present invention provides a negative pressure storage device for soft tumor samples in brain surgery, comprising a hard sealed tube 1, a device inlet pipe 2, a device outlet pipe 3 and a soft storage bag 4, wherein the device inlet pipe 2 and the device outlet pipe 3 are respectively and sealedly connected at the two ends of the hard sealed tube 1, and the soft storage bag 4 is arranged in the hard sealed tube 1 and connected with the device inlet pipe 2.

[0026] This negative pressure collection device greatly improves the efficiency and reliability of tumor sample collection in terms of operation process, ensures the safety and integrity of tumor samples, and thus provides a strong guarantee for the accuracy and timeliness of pathological diagnosis. The specific use process is as follows:

[0027] First, before the operation begins, the negative pressure storage device needs to be strictly disinfected to ensure that it is in a sterile state during the operation. At the same time, the sealing and negative pressure performance of the device must be checked before use to confirm that all components are intact and there is no leakage. During the operation, the surgical aspirator suction tube is connected to the device inlet tube 2, and then the negative pressure tube is connected to the device outlet tube 3, and the connection is ensured to be tight and leak-free. In the stage of collecting soft tumor samples, the surgeon accurately places the surgical aspirator near the surgical incision and adjusts the position of the tumor tissue. Subsequently, the surgeon or assistant turns on the negative pressure source and applies negative pressure to the hard closed cylinder 1 through the negative pressure tube and the device outlet tube 3. Under the action of negative pressure, the soft storage capsule 4 begins to expand, and the tumor tissue is sucked in through the surgical aspirator and the device inlet tube 2 under the attraction of negative pressure, and is introduced into the soft storage capsule 4. With the continuous action of negative pressure, the tumor tissue is gradually sucked into the soft storage capsule 4. When it is confirmed that the tumor sample is fully collected, the surgeon or assistant cuts off the negative pressure source to complete the tumor sample collection. Finally, the soft storage capsule 4 in the device is taken out and sent for further processing or pathological analysis.

[0028] See also Figure 2 and Figure 3 The feasibility of the scheme is verified by simulation calculation. The inlet tube 2 of the device is designed as a Luer connector with an inner diameter of 2 mm, an outer diameter of about 6 mm, and a length of 24 mm, which is suitable for intraoperative fluid suction; the cooperation of the sealing rubber plug 5 and the annular pattern 7 makes the interior of the hard sealed tube 1 present a closed state, and the three-way valve 8 is switched to the device outlet tube 3. The interior maintains a negative pressure state under the negative pressure provided by the device outlet tube 3, and the soft storage bag 4 will expand accordingly. The intraoperative fluid utilizes the internal and external pressure difference to be extracted into the expanded soft storage bag 4 through the Luer connector. At the same time, the soft storage bag 4 adopts a closed design to prevent the liquid from splashing upward to avoid pollution or other unexpected situations. The soft storage capsule 4 is made of polymer material and can withstand a pressure of 0.25Kpa; the surface tension of blood or body fluid is between 42-60N / m, the external negative pressure is adjustable, the inner diameter of the outlet pipe 3 of the lower device is 2mm, which is consistent with the inner diameter of the Luer connector. According to Q=V*A, the flow rate and flow velocity at the outlet pipe 3 of the device and the Luer connector are roughly equal, and the simulated velocity of V is about 0.04m / s; the internal negative pressure is -0.1Mpa, and the surface tension of the liquid assumes an area, and the calculated flow pressure is 6*10-5th power Mpa, and the expansion pressure of the soft storage capsule 4 is about 0.0025Mpa, which is much less than 0.1Mpa. Therefore, this solution is feasible after precise simulation calculations, and has high practicality and safety.

[0029] The beneficial effects that can be obtained by using this negative pressure storage device are as follows:

[0030] Improve tumor collection efficiency: Through the negative pressure principle, this negative pressure collection device can quickly and effectively capture and collect soft tumor tissue, reducing the number of operations and operation time of the surgeon, thereby effectively improving the efficiency of tumor sample collection.

[0031] Reduce the risk of sample loss: The design of the soft storage capsule 4 and the hard sealed tube 1 can effectively prevent the tumor sample from being lost or contaminated during the collection process, ensuring the integrity of the tumor sample and the accuracy of pathological diagnosis, and helping to formulate a more accurate treatment plan for the patient.

[0032] Reduce surgical risks: Since this negative pressure collection device can collect tumor samples efficiently and completely, it reduces the time for repeated sampling during surgery, thereby shortening the overall operation time and reducing the patient's anesthesia burden and surgical risks.

[0033] Easy to operate: The device has a simple structure and is easy to operate, making it convenient for surgeons to use during surgery, thus improving the fluency and efficiency of the surgery.

[0034] In a specific embodiment, see Figure 1 The inlet pipe 2 of the device is formed by a plurality of conical structural segments continuously overlapped, and the upper diameter of each conical structural segment is smaller than the lower diameter.

[0035] The inlet tube 2 of the device designed as above is shaped as a continuous and tapered pipe structure for the hose of the surgical aspirator to be mounted on, and the connection stability between the two is enhanced, avoiding leakage caused by loose connection, thereby improving the overall sealing and stability of the negative pressure collection device.

[0036] In a specific embodiment, see Figure 1 One end of the hard sealed tube 1 is provided with an opening, and is provided with a sealing rubber plug 5 that seals with the opening. The device inlet pipe 2 is penetrated and arranged on the sealing rubber plug 5, and the soft storage bag 4 is detachably connected to the bottom of the sealing rubber plug 5.

[0037] The sealing cooperation between the hard sealed cylinder 1 and the sealing rubber plug 5 can not only ensure the sealing performance of the negative pressure storage device, but also make the installation and removal of the soft storage bag 4 more convenient. At the same time, the hard sealed cylinder 1 and the device inlet pipe 2 are detachable, making the disinfection of the negative pressure storage device more comprehensive and thorough, ensuring that all key components can be fully cleaned and disinfected after each use, effectively avoiding the risk of cross infection, ensuring the sanitation and safety of the surgical environment, and also extending the service life of the negative pressure storage device, improving its economic benefits and practicality.

[0038] In a specific embodiment, see Figure 1A mounting tube 6 is provided below the sealing rubber plug 5 , the mounting tube 6 is connected to the device inlet tube 2 , and the soft storage bag 4 is sleeved on the mounting tube 6 .

[0039] The installation tube 6 is not only connected to the device inlet tube 2 to ensure the smooth transmission of negative pressure, but also serves as a connecting component between the sealing rubber plug 5 and the soft storage bag 4, making the installation and disassembly of the soft storage bag 4 more convenient and quick, simplifying the assembly process of the negative pressure storage device, greatly reducing the complexity and time consumption of the operation, and helping to improve the efficiency of the operation.

[0040] In a specific embodiment, see Figure 1 The outer surface of the sealing rubber plug 5 is provided with a plurality of annular patterns 7 in the upper and lower parts.

[0041] By providing a plurality of annular patterns 7 on the outer surface of the sealing rubber plug 5, the stability of the sealing rubber plug 5 in the hard closed cylinder 1 can be increased, and the sealing rubber plug 5 can be prevented from being deflected or falling off under the action of negative pressure or external force, thereby ensuring the sealing performance of the negative pressure receiving device. In addition, compared with the case where the annular patterns 7 are not provided, the problem of air leakage caused by improper assembly or material fatigue can be effectively prevented, thereby increasing the service life of the sealing rubber plug 5.

[0042] In a specific embodiment, see Figure 1 A three-way valve 8 is provided on the outlet pipe 3 of the device.

[0043] The three-way valve 8 adopts conventional technical means of the prior art, and can control the opening and closing of the valve and the adjustment of the flow rate by rotating operation, thereby realizing precise control of the negative pressure, allowing the operator to quickly cut off, restore or adjust the negative pressure when necessary. Reliable support is provided for the negative pressure collection device during the operation, ensuring the smooth collection and preservation of soft tumor samples, while also improving the safety and efficiency of the overall surgical operation. Specifically, one end of the three-way valve 8 is connected to the negative pressure, one end is connected to the intraoperative tumor removal body, and one end releases the pressure. When the three-way valve 8 is closed and connected to the port for intraoperative tumor removal, the pressure release port will open. On the contrary, when the pressure release port is closed, the intraoperative tumor removal port will open, which effectively prevents the liquid from flowing into the negative pressure collection device and avoids damage to the negative pressure collection device.

[0044] In a specific embodiment, the hard sealed cylinder 1 is made of a transparent material.

[0045] The transparent material provides a more intuitive observation path, ensuring that doctors can check the sealing and negative pressure status inside the device at any time, avoiding surgical risks caused by device failure or poor sealing, and improving overall safety.

[0046] In a specific embodiment, the soft storage bag 4 is made of a transparent or translucent flexible material.

[0047] The transparent or translucent material makes the contents inside the soft storage capsule 4 clearly visible. During the tumor sample collection stage during the operation, the doctor can monitor the collection of tumor samples in real time and intuitively. Once an abnormality is found in the sample collection process, such as sample damage, contamination, etc., the doctor can immediately detect it and take necessary corrective measures accordingly to prevent adverse effects on the operation and improve the overall safety of the operation.

[0048] It is worth mentioning that in the above embodiment, the number of the conical structure and the ring pattern 7 can be freely adjusted and optimized according to specific needs, and the transparent material of the hard sealed tube 1 and the transparent or translucent flexible material of the soft storage bag 4 are both medical-grade materials in the prior art to ensure their excellent performance in biocompatibility, corrosion resistance, wear resistance, etc., to ensure the safety of patients and the reliability of the device during surgery. These settings are easy to implement for the technology in the field, so they will not be repeated here.

[0049] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0050] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A negative pressure storage device for soft tumor samples in brain surgery, characterized in that: The device comprises a hard sealed cylinder (1), a device inlet pipe (2), a device outlet pipe (3) and a soft storage bag (4); the device inlet pipe (2) and the device outlet pipe (3) are respectively arranged at two ends of the hard sealed cylinder (1) in a sealed manner; the soft storage bag (4) is arranged in the hard sealed cylinder (1) and is connected to the device inlet pipe (2).

2. A negative pressure storage device for soft tumor samples in brain surgery according to claim 1, characterized in that: The device inlet pipe (2) is formed by a plurality of conical structural sections which are continuously overlapped, and the upper diameter of each conical structural section is smaller than the lower diameter.

3. The negative pressure storage device for soft tumor samples in brain surgery according to claim 1, characterized in that: One end of the hard sealed cylinder (1) is provided with an opening and a sealing rubber plug (5) which is sealed with the opening; the device inlet pipe (2) is arranged through the sealing rubber plug (5); and the soft storage bag (4) is detachably connected to the bottom of the sealing rubber plug (5).

4. The negative pressure storage device for soft tumor samples in brain surgery according to claim 3, characterized in that: A mounting tube (6) is provided below the sealing rubber plug (5), the mounting tube (6) is connected to the device inlet tube (2), and the soft storage bag (4) is sleeved on the mounting tube (6).

5. The negative pressure storage device for soft tumor samples in brain surgery according to claim 3, characterized in that: The outer surface of the sealing rubber plug (5) is provided with a plurality of annular patterns (7) in the upper and lower parts.

6. The negative pressure storage device for soft tumor samples in brain surgery according to claim 1, characterized in that: A three-way valve (8) is provided on the outlet pipe (3) of the device.

7. The negative pressure storage device for soft tumor samples in brain surgery according to claim 1, characterized in that: The hard sealed cylinder (1) is made of transparent material.

8. The negative pressure storage device for soft tumor samples in brain surgery according to claim 7, characterized in that: The soft storage bag (4) is made of a transparent or translucent flexible material.

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