Quick-release type tissue sealing glue bursting pressure testing device

Abstract

The utility model discloses a quick release type tissue sealing glue bursting pressure testing device, which comprises a liquid injection body, a sealing cover and a gland, the liquid injection body comprises a first pressing surface, the sealing cover comprises a top surface and a second pressing surface which are opposite to each other, the sealing cover can cover the first pressing surface through the second pressing surface, and the top surface and the second pressing surface are opposite to each other. The first pressing surface and the second pressing surface are oppositely arranged, so that a tissue clamping and pressing area is formed between the first pressing surface and the second pressing surface, a liquid injection cavity is formed in the liquid injection body and penetrates through the first pressing surface, a sample adding groove is formed in the sealing cover, the upper end and the lower end of the sample adding groove penetrate through the top surface and the second pressing surface respectively, and the liquid injection cavity and the sample adding groove are oppositely arranged. And the gland is movably mounted above the sealing cover and can be in threaded connection with the liquid injection body. Biological tissues to be tested in the tissue clamping and pressing area can be better clamped, pressed and sealed, and the testing effect is more stable.

Description

Technical Field

[0001] The utility model belongs to the technical field of tissue sealant testing equipment, and particularly relates to a quick-disassembly type tissue sealant bursting pressure testing device. Background Art

[0002] Tissue sealants are advanced biomedical materials for bolt-fixed tissue sealant bursting pressure testing devices, which are widely used in surgical operations and wound care to achieve rapid hemostasis, prevent tissue fluid leakage, prevent infection, and promote wound healing. They are composed of a variety of biocompatible components, including natural biomaterials, synthetic polymers, proteins, etc., which can quickly solidify at the wound site to form a physical barrier and effectively control bleeding or fluid leakage. The adhesion performance of tissue sealants is the key to ensuring wound closure.

[0003] Currently, using bursting pressure to evaluate the adhesion and sealing ability of sealants is widely recognized in the industry. However, the existing test schemes have disadvantages such as slow device assembly, long assembly time, poor sealing performance, and unstable test results, resulting in the inability to reasonably and accurately evaluate the sealing performance of various tissue sealants.

[0004] Based on this, the applicant considered designing a quick-disassembly type tissue sealant bursting pressure testing device. Summary of the Utility Model

[0005] Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by the present invention is: how to provide a quick-disassembly type tissue sealant bursting pressure testing device.

[0006] To solve the above technical problem, the utility model adopts the following technical scheme:

[0007] A quick-disassembly type tissue sealant bursting pressure testing device includes a liquid injector, a sealing cover, and a gland. The liquid injector includes a first pressing surface, the sealing cover includes an opposite top surface and a second pressing surface, and the sealing cover can cover the first pressing surface through the second pressing surface so that a tissue clamping area is formed between the first pressing surface and the second pressing surface. A liquid injection cavity is provided in the liquid injector, and the liquid injection cavity penetrates through the first pressing surface. A sample addition groove is provided in the sealing cover, and the upper and lower ends of the sample addition groove penetrate through the top surface and the second pressing surface respectively. The liquid injection cavity is arranged opposite to the sample addition groove. The gland is movably installed above the sealing cover and can be threadedly connected to the liquid injector.

[0008] Compared with the prior art, the advantages of the quick-disassembly type tissue sealant bursting pressure testing device of the utility model are:

[0009] Through the provided liquid injection body, sealing cover and pressing cover, it is achieved that by covering the sealing cover on the liquid injection body, the biological tissue being tested in the tissue clamping area can be better clamped and sealed, the test effect is more stable, and during the test, the sealing cover can be tightly fixed by the pressing cover. Also, due to the threaded connection between the pressing cover and the liquid injection body, the pressing cover can be more conveniently and quickly disassembled from the liquid injection body, facilitating the replacement of the biological tissue being tested.

[0010] The above-mentioned tissue sealing glue bursting pressure testing device fixed by bolts has the advantages of simple structure and easy implementation, is suitable for installation and use during the existing tissue sealing glue bursting pressure testing process, and has a low usage cost, which can improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0012] Figure 2 is Figure 1 a schematic diagram of the structure where the pressing cover presses the sealing cover downward and is threadedly connected to the liquid injection body;

[0013] Figure 3 is Figure 2 a schematic diagram of the structure where a biological tissue section to be tested is placed into the tissue clamping area;

[0014] DESCRIPTION OF THE REFERENCE NUMERALS

[0015] 100 Liquid injection body, 110 First pressing surface, 120 Liquid injection cavity, 130 Limit post;

[0016] 200 Sealing cover, 210 Second pressing surface, 220 Top surface, 230 Sampling groove, 240 Limit hole channel;

[0017] 300 Pressing cover, 310 Top pressing wall, 311 Through hole, 320 Side pressing ring wall, 330 Locking ring wall;

[0018] 400 Tissue clamping area;

[0019] 510 Sealing groove, 520 Sealing washer;

[0020] 600 Liquid injection flow channel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present utility model will be further described in detail below with reference to the drawings.

[0022] During specific implementation: As Figures 1 - 3As shown in the figure, a quick-release tissue sealing glue bursting pressure testing device includes a liquid injector 100, a sealing cover 200, and a pressing cover 300. The liquid injector 100 includes a first pressing surface 110. The sealing cover 200 includes an opposite top surface 220 and a second pressing surface 210. The sealing cover 200 can cover the first pressing surface 110 through the second pressing surface 210, so as to form a tissue clamping area 400 between the first pressing surface 110 and the second pressing surface 210. A liquid injection cavity 120 is provided in the liquid injector 100, and the liquid injection cavity 120 penetrates through the first pressing surface 110. A sample adding groove 230 is provided in the sealing cover 200, and the upper and lower ends of the sample adding groove 230 penetrate through the top surface 220 and the second pressing surface 210 respectively. The liquid injection cavity 120 and the sample adding groove 230 are arranged opposite to each other. The pressing cover 300 is movably installed above the sealing cover 200 and can be threadedly connected to the liquid injector 100.

[0023] Compared with the prior art, the advantages of the quick-release tissue sealing glue bursting pressure testing device of the present utility model are as follows:

[0024] By providing the liquid injector 100, the sealing cover 200, and the pressing cover 300, it is realized that by covering the sealing cover 200 on the liquid injector 100, the biological tissue tested in the tissue clamping area 400 can be better clamped and sealed, the test effect is more stable. At the same time, during the test process, the sealing cover 200 can be tightly fixed by the pressing cover 300, and the pressing cover 300 can be more conveniently and quickly disassembled from the liquid injector 100 through the threaded connection between the pressing cover 300 and the liquid injector 100, which is convenient for replacing the tested biological tissue.

[0025] The above-mentioned tissue sealing glue bursting pressure testing device fixed by bolts has the advantages of simple structure and easy implementation, is suitable for installation and use during the existing tissue sealing glue bursting pressure testing process, and has a low use cost, which can improve efficiency.

[0026] During implementation, the liquid injection cavity 120 is arranged in the middle of the liquid injector 100, and the sample adding groove 230 is arranged in the middle of the sealing cover 200.

[0027] During implementation, the biological tissue section to be tested is placed in the tissue clamping area 400, so that the biological tissue section to be tested is clamped and fixed by the first pressing surface 110 and the second pressing surface 210. A test hole is opened on the biological tissue to be tested, and the test hole is simultaneously communicated with the liquid injection cavity 120 and the sample adding groove 230. Then, the tissue sealing glue is placed in the sample adding groove 230 and covered and adhered to the test hole. Finally, the pressurizing liquid is continuously injected into the liquid injection cavity 120. The pressurizing liquid can directly contact the tissue sealing glue through the test hole. Under a certain pressure, the pressurizing liquid can break through the sealing of the tissue sealing glue to the tested biological tissue and enter the sample adding groove 230, and record the pressure value.

[0028] In this embodiment, as Figures 1 - 3As shown, a plurality of limiting channels 240 are provided inside the sealing cover 200. Both ends of each limiting channel 240 penetrate through the second pressing surface 210 and the top surface 220 of the sealing cover 200 respectively. A plurality of limiting posts 130 corresponding to the limiting channels 240 one by one are vertically arranged on the first pressing surface 110 of the liquid injector 100, and the plurality of limiting posts 130 can be inserted into the plurality of limiting channels 240 respectively.

[0029] In this way, through the plurality of limiting channels 240 and the plurality of limiting posts 130 provided, the sealing cover 200 can be fixed on the first pressing surface 110 of the liquid injector 100, avoiding relative displacement between the sealing cover 200 and the liquid injector 100, and improving the sealing performance between the sealing cover 200 and the liquid injector 100.

[0030] In this embodiment, as Figures 1 - 3 shown, the outer peripheral surface of the sealing cover 200 is a conical surface, and the cross-sectional width of the conical surface decreases sequentially from the second pressing surface 210 to the top surface 220.

[0031] In this way, by setting the outer peripheral surface of the sealing cover 200 as a conical surface, when the pressing cover 300 presses the sealing cover 200 tightly, the friction between the pressing cover 300 and the upper part of the sealing cover 200 can be reduced, and it is also more convenient for threaded connection with the liquid injector 100.

[0032] In this embodiment, as Figures 1 - 3 shown, the pressing cover 300 includes a top pressing wall 310, a side pressing ring wall 320 and a locking ring wall 330. The side pressing ring wall 320 is coaxially fixed below the top pressing wall 310, and the locking ring wall 330 is coaxially fixed below the side pressing ring wall. A first thread is provided on the inner wall of the locking ring wall 330. The liquid injector 100 is cylindrical, and a second thread is provided at the top end of the outer peripheral surface of the liquid injector 100. The locking ring wall 330 can be threadedly connected with the second thread through the first thread.

[0033] In this way, through the top pressing wall 310, the side pressing ring wall 320, the locking ring wall 330 provided, and the first thread provided in the locking ring wall 330 and the second thread outside the liquid injector 100, the pressing cover 300 can realize threaded disassembly connection with the locking ring, and the installation and disassembly structure is relatively simple and the operation is convenient.

[0034] In this embodiment, as Figures 1 - 3 shown, a through hole 311 penetrating up and down is provided in the middle of the top pressing wall 310.

[0035] In this way, through the through hole 311 provided, external operators can see the situation inside the sample adding groove 230 through the through hole 311, which is convenient for timely response and operation.

[0036] In this embodiment, as Figures 1 - 3As shown, the side pressing ring wall 320 is conical, and the conical inclination angle of the side pressing ring wall 320 is the same as that of the outer peripheral surface of the sealing cover 200.

[0037] In this way, by setting the side pressing ring wall 320 to the same conical shape as the outer peripheral surface of the sealing cover 200, when the pressing cover 300 presses the sealing cover 200 tightly under the cover, the contact area between the pressing cover 300 and the sealing cover 200 can be increased, so as to better limit the left - right offset of the sealing cover 200.

[0038] In this embodiment, as Figures 1 - 3 shown, a sealing groove 510 is formed on the first pressing surface 110. The sealing groove 510 is arranged around the opening of the liquid injection cavity 120 on the first pressing surface 110 and forms a closed loop. A sealing gasket 520 is arranged in the sealing groove 510.

[0039] In this way, through the arranged sealing groove 510 and sealing gasket 520, the sealing performance between the test tissue placed in the tissue clamping area 400 and the liquid injection cavity 120 can be further improved, the sealing effect is better, and the test process is more reliable.

[0040] In this embodiment, as Figures 1 - 3 shown, the sealing groove 510 is annular, and the sealing gasket 520 is also annular and can be embedded into the sealing groove 510.

[0041] In this way, by setting both the sealing groove 510 and the sealing gasket 520 to be annular, it is more convenient to embed and install the sealing gasket 520 into the sealing groove 510. Moreover, the annular sealing groove 510 and sealing gasket 520 are easier to manufacture, the process is more mature, the manufacturing cost is lower, and it is easier to implement.

[0042] In this embodiment, as Figures 1 - 3 shown, a liquid injection flow channel 600 is further arranged in the liquid injector 100. The liquid injection flow channel 600 includes an opposite connection end and a docking end. The connection end of the liquid injection flow channel 600 is communicated with the liquid injection cavity 120, and the docking end penetrates through the outer side wall of the liquid injector 100.

[0043] In this way, through the arranged liquid injection flow channel 600, the pressurized liquid can be injected into the liquid injection cavity 120 through the liquid injection flow channel 600, and it is more convenient to inject liquid by arranging the liquid injection flow channel 600 on the side wall of the liquid injector 100, and the structural utilization rate of the liquid injector 100 is higher.

[0044] In this embodiment, as Figures 1 - 3 shown, the docking end of the liquid injection flow channel 600 extends out of the outer side wall of the liquid injector 100.

[0045] During implementation, since it is necessary to inject pressurized liquid into the liquid injection chamber 120 through an external liquid injection device to form a test pressure applied to the test biological tissue, the external liquid injection device needs to use a liquid injection catheter for liquid injection, and the docking end extends out of the outer wall of the liquid injector 100 to facilitate connection with the external liquid injection catheter.

[0046] In this way, by setting the docking end of the liquid injection flow channel 600 to extend out of the outer wall of the liquid injector 100, it is possible to more conveniently and quickly dock with the external liquid injection catheter.

[0047] The above is only the preferred implementation mode of the present utility model. It should be noted that for those skilled in the art, without departing from the premise of this technical solution, several modified and improved technical solutions should equally be regarded as falling within the scope protected by this claim book.

Claims

1. A quick-release type tissue sealing glue bursting pressure testing device, characterized in that: It includes a liquid injection body, a sealing cover and a pressing cover. The liquid injection body includes a first pressing surface. The sealing cover includes an opposite top surface and a second pressing surface. The sealing cover can cover the first pressing surface through the second pressing surface so that a tissue clamping area is formed between the first pressing surface and the second pressing surface. A liquid injection cavity is provided in the liquid injection body, and the liquid injection cavity penetrates through the first pressing surface. A sample adding groove is provided in the sealing cover, and the upper and lower ends of the sample adding groove penetrate through the top surface and the second pressing surface respectively. The liquid injection cavity is arranged opposite to the sample adding groove. The pressing cover is movably installed above the sealing cover and can be threadedly connected with the liquid injection body.

2. The quick-release tissue sealing glue bursting pressure testing device according to claim 1, wherein: A plurality of limiting hole channels are provided in the sealing cover, and both ends of each limiting hole channel penetrate through the second pressing surface and the top surface of the sealing cover respectively. A plurality of limiting columns corresponding to the limiting hole channels one by one are vertically arranged on the first pressing surface of the liquid injection body, and the plurality of limiting columns can be respectively inserted into the plurality of limiting hole channels.

3. The quick-release tissue sealing glue bursting pressure testing device according to claim 2, characterized in that: The outer peripheral surface of the sealing cover is a conical surface, and the cross-sectional width of the conical surface gradually decreases from the second pressing surface to the top surface.

4. The quick-release tissue sealing glue bursting pressure testing device according to claim 3, wherein: The pressing cover includes a top pressing wall, a side pressing ring wall and a locking ring wall. The side pressing ring wall is coaxially fixed below the top pressing wall, and the locking ring wall is coaxially fixed below the side pressing ring wall. A first thread is provided on the inner wall of the locking ring wall. The liquid injection body is cylindrical, and a second thread is provided at the top end of the outer peripheral surface of the liquid injection body. The locking ring wall can be threadedly connected with the second thread through the first thread.

5. The quick-release tissue sealing glue bursting pressure testing device according to claim 4, characterized in that: A through hole penetrating up and down is provided in the middle of the top pressing wall.

6. The quick-release tissue sealing glue bursting pressure testing device according to claim 4, wherein: The side pressing ring wall is conical, and the conical inclination angle of the side pressing ring wall is the same as the conical inclination angle of the outer peripheral surface of the sealing cover.

7. A quick-release tissue sealing glue burst pressure testing device according to claim 1, characterized in that: A sealing groove is provided on the first pressing surface. The sealing groove surrounds the opening of the liquid injection cavity on the first pressing surface and forms a closed loop. A sealing gasket is arranged in the sealing groove.

8. The quick-release type tissue sealing glue bursting pressure testing device according to claim 7, characterized in that: The sealing groove is circular, and the sealing gasket is also circular and can be embedded into the sealing groove.

9. The quick-release tissue sealing glue bursting pressure testing device according to claim 1, characterized in that: A liquid injection flow channel is further provided in the liquid injection body. The liquid injection flow channel includes an opposite connection end and a docking end. The connection end of the liquid injection flow channel is communicated with the liquid injection cavity, and the docking end penetrates through the outer side wall of the liquid injection body.

10. A quick-release tissue sealing glue bursting pressure testing device according to claim 9, characterized in that: The docking end of the liquid injection flow channel extends out of the outer side wall of the liquid injection body.

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