Burst pressure testing device for tissue sealing glue fixed by bolts

Abstract

The utility model discloses a bolt-fixed tissue sealing glue bursting pressure testing device, which comprises a liquid injection body and a cover pressing body, the liquid injection body comprises a first pressing surface, a liquid injection cavity is arranged in the liquid injection body, the liquid injection cavity penetrates through the first pressing surface, the cover pressing body comprises a second pressing surface and a top surface which are opposite to each other, and the second pressing surface is arranged on the top surface. The cover pressing body is arranged on the top surface and can cover the first pressing surface through the second pressing surface, so that a tissue clamping and pressing area is formed between the first pressing surface and the second pressing surface, a sample adding groove opposite to the liquid injection cavity is formed in the cover pressing body, and the upper end and the lower end of the sample adding groove penetrate through the top surface and the second pressing surface respectively; the multiple bolts are all installed on the cover pressing body and can be in threaded connection with the liquid injection body. The cover pressing body can be more conveniently and quickly mounted and dismounted through the bolt, and the cover pressing body covers the liquid injection body, so that tested biological tissues in the tissue clamping and pressing area can be better clamped, pressed and sealed.

Description

Technical Field

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

[0002] Tissue sealants are advanced biomedical materials fixed by bolts. They 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. These components can quickly solidify at the wound site to form a physical barrier, effectively controlling bleeding or fluid leakage. The adhesion performance of tissue sealants is the key to ensuring wound closure.

[0003] At present, using bursting pressure to evaluate the adhesion and sealing ability of sealants is widely recognized in the industry. However, the existing testing schemes have disadvantages such as inconsistent testing standards, poor device sealing performance, long assembly time, and unstable testing 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 bolt-fixed 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 bolt-fixed tissue sealant bursting pressure testing device.

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

[0007] A bolt-fixed tissue sealant bursting pressure testing device includes a liquid injector and a cover press body. The liquid injector includes a first pressing surface, and a liquid injection cavity is provided in the liquid injector. The liquid injection cavity penetrates through the first pressing surface. The cover press body includes an opposite second pressing surface and a top surface, and can cover the first pressing surface through the second pressing surface, so as to form a tissue clamping area between the first pressing surface and the second pressing surface. A sample adding groove opposite to the liquid injection cavity is opened in the cover press body, and the upper and lower ends of the sample adding groove penetrate through the top surface and the second pressing surface respectively. There are multiple bolts, and all the bolts are installed on the cover press body and can be threadedly connected with the liquid injector.

[0008] Compared with the prior art, the bolt-fixed tissue sealant bursting pressure testing device of the utility model has the following advantages:

[0009] Through the provided liquid injection body, cover pressing body and multiple bolts, during the test, the cover pressing body can be more conveniently and quickly installed on the liquid injection body through the bolts, and at the same time, the cover pressing body can be more conveniently and quickly disassembled from the liquid injection body, facilitating the replacement of the biological tissue to be tested. Moreover, covering the cover pressing body on the liquid injection body can better clamp and seal the biological tissue being tested in the tissue clamping area, and the test effect is more stable.

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

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

[0012] Figure 2 is Figure 1 a schematic structural diagram of a sealing washer arranged in the sealing groove in

[0013] Figure 3 is Figure 2 a schematic structural diagram of a biological tissue to be tested placed on the upper part of the sealing washer in the tissue clamping area in

[0014] Figure 4 is Figure 3 a schematic structural diagram of a diversion plug inserted into the liquid injection flow channel in

[0015] Figure 5 is Figure 1 a top view structural diagram of

[0016] DESCRIPTION OF THE REFERENCE NUMERALS

[0017] 100 Liquid injection body, 110 First pressing surface, 111 Sealing groove, 112 Sealing washer, 120 Liquid injection cavity, 130 Threaded hole, 140 Liquid injection flow channel;

[0018] 200 Cover pressing body, 210 Second pressing surface, 220 Top surface, 230 Sampling groove, 240 Through hole;

[0019] 300 Tissue clamping area;

[0020] 400 Bolt;

[0021] 510 Diversion plug, 520 Liquid injection catheter. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present utility model will be further described in detail below with reference to the drawings.

[0023] During specific implementation: AsFigures 1-5 As shown in the figure, a tissue sealing glue bursting pressure testing device fixed by bolts 400 includes a liquid injection body 100 and a cover pressing body 200. The liquid injection body 100 includes a first pressing surface 110. A liquid injection cavity 120 is provided in the liquid injection body 100, and the liquid injection cavity 120 penetrates through the first pressing surface 110. The cover pressing body 200 includes an opposite second pressing surface 210 and a top surface 220, and can cover the first pressing surface 110 through the second pressing surface 210, so that a tissue clamping area 300 is formed between the first pressing surface 110 and the second pressing surface 210. A sample adding groove 230 opposite to the liquid injection cavity 120 is opened in the cover pressing body 200. The upper and lower ends of the sample adding groove 230 penetrate through the top surface 220 and the second pressing surface 210 respectively. There are multiple bolts 400, and multiple bolts 400 are all installed on the cover pressing body 200 and can all be threadedly connected with the liquid injection body 100.

[0024] Compared with the prior art, the advantages of a tissue sealing glue bursting pressure testing device fixed by bolts 400 of the present utility model are as follows:

[0025] By arranging the liquid injection body 100, the cover pressing body 200 and multiple bolts 400, it is realized that during the testing process, the cover pressing body 200 can be more conveniently and quickly installed on the liquid injection body 100 through the bolts 400, and at the same time, the cover pressing body 200 can also be more conveniently and quickly disassembled from the liquid injection body 100, which is convenient for replacing the tested biological tissue. And by covering the cover pressing body 200 on the liquid injection body 100, the tested biological tissue in the tissue clamping area 300 can be better clamped and sealed, and the testing effect is more stable.

[0026] The above-mentioned tissue sealing glue bursting pressure testing device fixed by bolts 400 has the advantages of simple structure and easy implementation, is suitable for installation and use in the existing tissue sealing glue bursting pressure testing process, and has a lower use cost and can improve efficiency.

[0027] During implementation, place the section of the tested biological tissue into the tissue clamping area 300, so that the section of the tested biological tissue is clamped and fixed by the first pressing surface 110 and the second pressing surface 210. Open a test hole in the tested biological tissue, and the test hole is simultaneously communicated with the liquid injection cavity 120 and the sample adding groove 230. Then put the tissue sealing glue into the sample adding groove 230 and cover and adhere it on the test hole. Finally, continuously inject the pressure-applying liquid into the liquid injection cavity 120. The pressure-applying liquid can directly contact the tissue sealing glue through the test hole. Under a certain pressure, the pressure-applying 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 this pressure value.

[0028] In this embodiment, as Figures 1-5As shown, a plurality of through holes 240 are provided on the pressing cover body 200. Both ends of each through hole 240 respectively penetrate through the second pressing surface 210 and the top surface 220. A plurality of threaded holes 130 corresponding to the through holes 240 are provided on the liquid injection body 100. The plurality of threaded holes 130 all penetrate through the first pressing surface 110 of the liquid injection body 100. A plurality of bolts 400 respectively pass through the plurality of through holes 240 and can be threadedly connected to the plurality of threaded holes 130 one by one.

[0029] In this way, through the plurality of through holes 240 and the plurality of threaded holes 130 provided, the plurality of bolts 400 can detachably connect the pressing cover body 200 and the liquid injection body 100, and the connection structure is relatively simple, the manufacturing cost is relatively low, and it is easy to implement.

[0030] In this embodiment, as Figures 1-4 shown, a sealing groove 111 is formed on the first pressing surface 110. The sealing groove 111 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 112 is arranged in the sealing groove 111.

[0031] In this way, through the sealing groove 111 and the sealing gasket 112 provided, the sealing performance between the test tissue placed in the tissue clamping area 300 and the liquid injection cavity 120 can be further improved, the sealing effect is better, and the test process is more reliable.

[0032] In this embodiment, as Figures 1-4 shown, the sealing groove 111 is annular, and the sealing gasket 112 is also annular and can be embedded into the sealing groove 111.

[0033] In this way, by setting both the sealing groove 111 and the sealing gasket 112 to be annular, it is more convenient to embed and install the sealing gasket 112 into the sealing groove 111, and the annular sealing groove 111 and sealing gasket 112 are easier to manufacture, the process is more mature, the manufacturing cost is lower, and it is easy to implement.

[0034] In this embodiment, as Figures 1-5 shown, a liquid injection flow channel 140 is further provided in the liquid injection body 100. One end of the liquid injection flow channel 140 is communicated with the liquid injection cavity 120, and the other end penetrates through the side wall of the liquid injection body 100.

[0035] In this way, through the liquid injection flow channel 140 provided, the pressurizing liquid can be injected into the liquid injection cavity 120 through the liquid injection flow channel 140, and it is more convenient to inject liquid by arranging the liquid injection flow channel 140 on the side wall of the liquid injection body 100, and the structural utilization rate of the liquid injection body 100 is higher.

[0036] In this embodiment, as Figures 1-4As shown in the figure, it further includes a diversion plug 510 and a liquid injection conduit 520. The diversion plug 510 is cylindrical, and threads are provided on the outer cylindrical surface of the diversion plug 510. Threads are also provided on the inner wall of the liquid injection flow channel 140. The diversion plug 510 is threadedly connected in the liquid injection flow channel 140. The diversion plug 510 includes an inner end and an outer end that are opposite to each other. A liquid guiding channel is provided in the diversion plug 510. The two ends of the liquid guiding channel respectively penetrate through the end face of the inner end and the end face of the outer end. One end of the liquid injection conduit 520 communicates with the liquid guiding channel at the outer end.

[0037] In this way, through the provided diversion plug 510 and liquid injection conduit 520, the pressurized liquid can be injected into the liquid injection cavity 120 sequentially through the liquid injection conduit 520 and the diversion plug 510 to form a test pressure applied to the test biological tissue.

[0038] In this embodiment, as Figure 5 shown, there are four bolts 400, and the four bolts 400 are installed on the cover pressing body 200 in an equally spaced circular array.

[0039] In this way, by setting the number of bolts 400 to four and arranging the four bolts 400 in an equally spaced circular array, the second pressing surface 210 of the cover pressing body 200 can maintain a relatively balanced pressure around the perimeter when pressing the test biological tissue, and it is not easy to shift, and the fastening stability and reliability are better.

[0040] The above is only the preferred implementation manner 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 deformed and improved technical solutions should also be regarded as falling within the scope protected by this claim book.

Claims

1. A bolt-fixed tissue sealing glue bursting pressure testing device, characterized in that: It includes a liquid injection body and a cover pressing body. The liquid injection body includes a first pressing surface. A liquid injection cavity is provided in the liquid injection body, and the liquid injection cavity penetrates through the first pressing surface. The cover pressing body includes an opposite second pressing surface and a top surface, and can cover the first pressing surface through the second pressing surface, so as to form a tissue clamping area between the first pressing surface and the second pressing surface. A sample adding groove opposite to the liquid injection cavity is formed in the cover pressing body, and the upper and lower ends of the sample adding groove penetrate through the top surface and the second pressing surface respectively. There are multiple bolts, and multiple bolts are all installed on the cover pressing body and can all be threadedly connected with the liquid injection body.

2. The blasting pressure testing device for tissue sealing glue fixed by bolts according to claim 1, characterized in that: Multiple through holes are provided on the cover pressing body, and both ends of each through hole penetrate through the second pressing surface and the top surface respectively. Multiple threaded holes corresponding to the through holes are provided on the liquid injection body, and multiple threaded holes penetrate through the first pressing surface of the liquid injection body. Multiple bolts pass through multiple through holes one by one and can be threadedly connected with multiple threaded holes one by one.

3. The bolt-fixed tissue sealant bursting pressure testing device according to claim 2, wherein: A sealing groove is formed on the first pressing surface, and the sealing groove is arranged around 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.

4. The tissue-sealing glue bursting pressure testing device fixed by bolts according to claim 3, wherein: The sealing groove is circular ring-shaped, and the sealing gasket is also circular ring-shaped and can be embedded into the sealing groove.

5. A bolt-fixed tissue sealant bursting pressure testing device according to any one of claims 1-4, characterized in that: A liquid injection flow channel is further provided in the liquid injection body. One end of the liquid injection flow channel is communicated with the liquid injection cavity, and the other end penetrates through the side wall of the liquid injection body.

6. The tissue-sealing glue blasting pressure testing device fixed by bolts according to claim 5, characterized in that: It further includes a diversion plug and a liquid injection catheter. The diversion plug is cylindrical, and threads are provided on the outer circumferential surface of the diversion plug. Threads are also provided on the inner wall of the liquid injection flow channel. The diversion plug is threadedly connected in the liquid injection flow channel. The diversion plug includes an opposite inner end and an outer end. A liquid guiding channel is formed in the diversion plug, and both ends of the liquid guiding channel penetrate through the end surface of the inner end and the end surface of the outer end respectively. One end of the liquid injection catheter is communicated with the liquid guiding channel at the outer end.

7. A bolt-fixed tissue sealant bursting pressure testing device according to any one of claims 1-4, characterized in that: There are four bolts, and the four bolts are installed on the cover pressing body in an equally spaced circular array.

Images