Fixator for constructing bama miniature pig DCUs model

Abstract

The invention belongs to the technical field of bama miniature pig experiments, and particularly relates to a fixator for constructing a bama miniature pig DCUs model, which comprises an outer sleeve and an inner sleeve arranged in the outer sleeve, first openings are formed in the left side and the right side of the bottom end of the outer sleeve, and second openings are formed in the left side and the right side of the bottom end of the inner sleeve. A supporting strip is fixedly connected into the inner sleeve, a twisting strip is fixedly connected to the upper end of the screw shaft, a screw hole is formed in the middle of the supporting strip, the screw shaft is connected into the screw hole in a screwed mode, a connecting base is arranged at the bottom end of the screw shaft, and connecting rods are arranged on the left side and the right side of the bottom end of the connecting base. Compared with an existing fixator which adopts a sewing fixing mode, the fixing device has the advantages that the operation is more convenient and faster, skin inflammation and ulceration on the surface of a wound are not easily caused, and the use is better.

Description

Technical Field

[0001] The invention belongs to the technical field of Bama miniature pig experiments, and particularly relates to a fixator for constructing a Bama miniature pig DCUs model. Background Art

[0002] When constructing the Bama miniature pig DCUs model, fillers are needed to seal the wound after surgical incision. Figure 1 As shown), after being fitted into the wound, the top of the fixator needs to be sutured and fixed to the skin around the wound using a four-point method using a hook and suture thread, thereby achieving fixation and use of the fixator in the wound.

[0003] However, the above method has the following problems: the fixator must be removed from the wound regularly to clean and disinfect the necrotic tissue or granulation tissue in the wound, perform film tracing, take photos, calculate the wound area and healing rate, and then re-fix the fixator in the wound. The above operation is repeated regularly. However, the fixator and the wound are fixed with sutures, so each time the fixator is removed, the sutures around the upper part must be removed one by one. When the fixator is subsequently re-inserted, the sutures must be re-fixed with sutures. The above method is cumbersome and inconvenient. The repeated removal and suturing of the sutures can easily cause inflammation and ulceration of the skin at the suture lines on the surface of the wound, making it unsuitable for use. Summary of the Invention

[0004] To solve the above-mentioned problems existing in the prior art, the present invention provides a fixator for constructing a Bama miniature pig DCUs model. Compared with the existing fixator using suture fixation, the operation is more convenient and quick, and it is less likely to cause inflammation and ulceration of the skin on the wound surface, making it better to use.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a fixator for constructing a Bama miniature pig DCUs model, comprising an outer sleeve and an inner sleeve disposed inside the outer sleeve; The outer sleeve has openings on both sides of the bottom end, and the inner sleeve has openings on both sides of the bottom end, and the second openings are connected to the first opening. The inner sleeve is fixedly connected to a support bar, a screw hole is provided in the middle of the support bar, a screw shaft is screwed in the screw hole, the upper end of the screw shaft is fixedly connected to a twist bar, the bottom end of the screw shaft is fixedly connected to a connecting shaft, a connecting seat is provided at the bottom end of the screw shaft, a connecting groove is provided in the interior of the connecting seat, and the connecting shaft is rotatably connected to the connecting groove; The bottom end of the connecting seat is fixedly connected to a connecting block on both sides, and an axial hole 1 is opened on the connecting block. A connecting rod is provided on both sides of the bottom end of the connecting seat, and a notch is opened on the upper end of the connecting rod. A shaft bar 1 is fixedly connected inside the notch 1, and the shaft bar 1 is rotatably connected to the shaft hole 1. The bottom end of the connecting rod is provided with a second shaft hole; The front and rear sides of the inner bottom end of the inner sleeve are fixedly connected to the guide frame, and the left and right sides of the inner side of the guide frame are slidably connected to the clamping strip, and the clamping strip has a second notch formed at one end close to the connecting rod, and the inside of the second notch is fixedly connected to the second shaft bar, and the second shaft bar is rotatably connected to the second shaft hole, and the end of the clamping strip away from the connecting rod is slidably connected to the second opening.

[0006] As a preferred technical solution for the fixator for constructing the Bama miniature pig DCUs model of the present invention, grooves are provided on both the front and rear sides of the upper end of the outer shell.

[0007] As the preferred technical solution for the fixator for constructing the Bama miniature pig DCUs model of the present invention, positioning side grooves are provided on the inner walls on both sides of the upper end of the outer sleeve, and positioning side convexities are integrally formed on both sides of the upper end of the inner sleeve, and the positioning side convexities are engaged and connected with the positioning side grooves.

[0008] As a preferred technical solution of the fixator for constructing the Bama miniature pig DCUs model of the present invention, a plurality of anti-slip strips are integrally formed on the front and rear sides of the twist bar.

[0009] As a preferred technical solution of the fixator for constructing the Bama miniature pig DCUs model of the present invention, a twist groove is provided at the upper end of the twist bar.

[0010] As a preferred technical solution for the fixator for constructing the Bama miniature pig DCUs model of the present invention, the connecting shaft and the connecting groove are both "convex" shaped structures.

[0011] As the preferred technical solution for the fixator for constructing the Bama miniature pig DCUs model of the present invention, the guide frame is a "U"-shaped structure.

[0012] As a preferred technical solution of the fixator for constructing the Bama miniature pig DCUs model of the present invention, the end of the clamping strip away from the connecting rod is an inclined surface with a sharp edge.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention mainly consists of an outer outer sleeve and an inner inner sleeve. When in use, the outer outer sleeve containing the inner sleeve is placed into the wound. Then, by twisting the twist bar and the screw shaft in the inner sleeve, the connecting seat is driven downward. Furthermore, through the movable connecting rod, the clamping strips on both sides of the bottom of the inner sleeve are further pushed out from the openings on both sides of the bottom of the outer sleeve. The guide frame is used for guiding and limiting. The two clamping strips extending from the bottom are embedded in the inner walls on both sides of the wound to achieve the fixation of the fixator in the wound. Through the above technical solution, when necrotic tissue or granulation tissue in the wound needs to be cleaned and disinfected in the future, the outer sleeve with the bottom opening can be left in the wound. It is only necessary to twist the twist bar and the screw shaft in the opposite direction with the tool to drive the clips on both sides of the bottom of the inner sleeve to be retracted, and then the inner sleeve can be taken out of the outer sleeve. After the treatment is completed, the inner sleeve can be reinstalled in the outer sleeve in the same way, and the clips can be released to fix it. Compared with the existing fixator that adopts suturing and fixing, it is more convenient and quick to operate, and is less likely to cause inflammation and ulceration of the skin on the wound surface, and is better to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 This is a schematic diagram of a fixator in the prior art being fixed in a wound; Figure 2 It is a structural schematic diagram of the present invention; Figure 3 for Figure 2 Schematic diagram of the structure viewed from above; Figure 4 for Figure 2 Schematic diagram of cross-section structure; Figure 5 for Figure 4 A schematic diagram of the front structure of FIG. Figure 6 This is a schematic diagram of the inner sleeve and outer sleeve separation structure of the present invention; Figure 7 for Figure 6 Schematic diagram of the cross-section structure; Figure 8 for Figure 7 A schematic diagram of the front structure of FIG. Figure 9 This is a schematic diagram of the cross-sectional structure of the inner sleeve of the present invention; Figure 10 for Figure 9 A schematic diagram of the front structure of FIG. Figure 11 This is a schematic diagram of the connection structure of the support bar, screw shaft, twist bar, connecting seat, connecting rod, guide frame and clamping bar of the present invention; Figure 12for Figure 11 Schematic diagram of the cross-section structure; Figure 13 for Figure 12 A schematic diagram of the front structure of FIG. Figure 14 This is a schematic diagram of the front cross-sectional structure of the connection between the screw shaft, connecting seat, connecting rod, guide frame and clamping strip of the present invention; Figure 15 Schematic diagram of the connecting rod structure of the present invention.

[0015] In the figure: 1. outer sleeve; 2. groove; 3. positioning side groove; 4. opening one; 5. inner sleeve; 6. positioning side protrusion; 7. opening two; 8. support bar; 9. screw hole; 10. screw shaft; 11. twist bar; 12. anti-slip strip; 13. twist groove; 14. connecting shaft; 15. connecting seat; 16. connecting groove; 17. connecting block; 18. shaft hole one; 19. connecting rod; 20. notch one; 21. shaft bar one; 22. shaft hole two; 23. guide frame; 24. clamping bar; 25. notch two; 26. shaft bar two. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0017] See also Figure 1-15 The present invention provides the following technical solution: a fixator for constructing a Bama miniature pig DCUs model, comprising an outer sleeve 1 and an inner sleeve 5 arranged inside the outer sleeve 1.

[0018] Reference Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, further, grooves 2 are provided on the front and rear sides of the upper end of the jacket 1, positioning side grooves 3 are provided on the inner walls on the left and right sides of the upper end of the jacket 1, and openings 4 are provided on the left and right sides of the bottom end of the jacket 1. Among them, through the setting of the grooves 2, when the inner sleeve 5 in the jacket 1 is taken out, the jacket 1 can be pressed by tools such as tweezers to prevent the jacket 1 from being driven to move, so as to separate the inner sleeve 5 from the jacket 1.

[0019] Reference Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10 As shown, further, positioning side protrusions 6 are integrally formed on both sides of the upper end of the inner sleeve 5, and the positioning side protrusions 6 are engaged with the positioning side grooves 3, and openings 2 7 are opened on both sides of the bottom end of the inner sleeve 5, and opening 2 7 is communicated with opening 1 4. Among them, through the arrangement of the positioning side protrusions 6 and the positioning side grooves 3, the inner sleeve 5 is centered in the outer sleeve 1, so that the opening 1 4, the opening 2 7 and the card strip 24 are aligned, so that the card strip 24 can be further retracted and used.

[0020] Reference Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 and Figure 14 As shown, further, the inner sleeve 5 is fixedly connected to the support bar 8, the middle position of the support bar 8 is provided with a screw hole 9, the screw hole 9 is screwed and connected to the screw shaft 10, the upper end of the screw shaft 10 is fixedly connected to the twist bar 11, the front and rear sides of the twist bar 11 are integrally formed with a number of anti-slip strips 12, the upper end of the twist bar 11 is provided with a twist groove 13, the bottom end of the screw shaft 10 is fixedly connected to the connecting shaft 14, the bottom end of the screw shaft 10 is provided with a connecting seat 15, the interior of the connecting seat 15 is provided with a connecting groove 16, both of which are "convex" shaped structures, and the connecting shaft 14 is rotatably connected to the connecting groove 16 The anti-slip strip 12 on the support bar 8 allows the twist bar 11 to be twisted by means of tools such as tweezers or pliers through non-slip clamping. The twist bar 11 can also be twisted by inserting tools such as tweezers or pliers into the twist groove 13 on the twist bar 11. Through the setting of the connecting shaft 14 and the connecting groove 16, the rotating screw shaft 10 can drive the connecting seat 15 to move smoothly up and down, and the connecting seat 15 will not rotate with the rotation of the screw shaft 10. Then, the connecting seat 15 that moves smoothly up and down drives the connecting rod 19 to move up and down, so as to realize the movable retraction and extension control of the card strip 24.

[0021] Reference Figure 4 、 Figure 5 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 、 Figure 14 and Figure 15As shown, further, connecting blocks 17 are fixedly connected to the left and right sides of the bottom end of the connecting seat 15, and an axial hole 18 is provided on the connecting block 17. Connecting rods 19 are provided on the left and right sides of the bottom end of the connecting seat 15, and a recess 20 is provided at the upper end of the connecting rod 19. An axis 21 is fixedly connected to the inside of the recess 20, and the axis 21 is rotatably connected to the axial hole 18. An axis hole 22 is provided at the bottom end of the connecting rod 19, wherein, through the arrangement of the connecting block 17, the axial hole 18, the recess 20 and the axis 21, the upper end of the connecting rod 19 can be movably connected to the connecting seat 15.

[0022] Reference Figure 4 、 Figure 5 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 、 Figure 14 and Figure 15 As shown, further, the front and rear sides of the inner bottom end of the inner sleeve 5 are fixedly connected with guide frames 23, and the guide frame 23 is a "U"-shaped structure. The left and right sides of the inner side of the guide frame 23 are slidably connected with a clamping strip 24, and a recess 25 is provided at one end of the clamping strip 24 close to the connecting rod 19. The inside of the recess 25 is fixedly connected with an axis 26, and the axis 26 is rotatably connected to the axis hole 22. The end of the clamping strip 24 away from the connecting rod 19 is slidably connected to the opening 27, and the end face is an inclined surface with a sharp edge. The guide frame 23 is used to guide and limit the clamping strip 24 when it is laterally movable and retracted. The recess 25, the axis 26 and the axis hole 22 are provided to realize the movable connection between the bottom end of the connecting rod 19 and the clamping strip 24, so as to control the movable retraction and extension of the clamping strip 24.

[0023] In this embodiment: the present invention is mainly composed of an outer outer sleeve 1 and an inner inner sleeve 5. When in use, the outer sleeve 1 containing the inner sleeve 5 is placed in the wound, and then the twist bar 11 and the screw shaft 10 in the inner sleeve 5 are twisted to drive the connecting seat 15 to move downward, and further through the movable connecting rod 19, the clips 24 on both sides of the bottom of the inner sleeve 5 are further pushed out from the opening 4 on both sides of the bottom of the outer sleeve 1, and guided and limited by the guide frame 23, and the two clips 24 extending from the bottom are embedded in the inner walls on both sides of the wound to achieve the fixation of the fixator in the wound.

[0024] Through the above technical solution, when necrotic tissue or granulation tissue in the wound needs to be cleaned and disinfected in the future, the outer sleeve 1 with the bottom opening can be left in the wound. It is only necessary to use a tool to reversely twist the twist bar 11 and the screw shaft 10 to drive the clamping strips 24 on both sides of the bottom of the inner sleeve 5 to be retracted, and further remove the inner sleeve 5 from the outer sleeve 1. After the treatment is completed, the inner sleeve 5 is re-installed in the outer sleeve 1 in the same way, and the clamping strips 24 are released for fixation. Compared with the existing fixator that adopts suturing and fixing, it is more convenient and quick to operate, and is less likely to cause inflammation and ulceration of the skin on the wound surface, and is better to use.

[0025] The process and working principle of the present invention are as follows: After all miniature pigs have successfully established a DM model and their high blood sugar levels have been stable for at least three months, five to six circular wounds with a diameter of approximately 3 cm are surgically created on both sides of the spine on the back of each miniature pig. After surgery, the wounds are numbered and evaluated, and the wounds are traced, photographed, and their area and volume are calculated. Fix the fixator in the wound, and then choose the right time to dig out the granulation tissue inside the wound to achieve the purpose of hindering wound healing. The use of the fixator is as follows: Disinfection before use: Soak with iodine for 1~2 hours in advance, rinse with saline, wipe dry with gauze and set aside; Packing and fixation: After the wound is formed, when there is no obvious bleeding in the wound, use tweezers or pliers to clamp the fixator composed of the outer sleeve 1 and the inner sleeve 5 and install it into the wound together, then use tweezers or pliers to clamp the twist bar 11 with the anti-slip strip 12 in the inner sleeve 5 or insert it into the twist groove 13 in the twist bar 11, and twist the twist bar 11 to And the screw shaft 10, during this process, the screw shaft 10 rotates downward relative to the screw hole 9, and through the rotational cooperation of the connecting shaft 14 and the connecting groove 16, the connecting groove 16 is driven to move vertically downward, through the downward moving connecting seat 15, and the rotational cooperation of the upper end of the connecting rod 19 and the connecting block 17, the rotational cooperation of the bottom end of the connecting block 17 and the clamping strip 24, and the guide frame 23 is used for guiding and limiting, the clamping strips 24 on both sides of the bottom of the inner sleeve 5 can be pushed outward from the opening 2 7, and further extended from the opening 1 4 on both sides of the bottom of the outer sleeve 1, and the two clamping strips 24 extending from the bottom are embedded in the inner walls of the wound on both sides, so as to achieve the fixation of the fixator in the wound; When it is necessary to clean and disinfect the necrotic tissue or granulation tissue in the wound later, the outer sleeve 1 with the bottom opening can be left in the wound, and the twist bar 11 and the screw shaft 10 are twisted in the opposite direction to drive the connecting seat 15 to move upward through the screw shaft 10, and the card strip 24 is pulled back by the movable connecting rod 19 to retract the card strips 24 extending on both sides of the bottom into the groove 2. Then, the groove 2 on the upper part of the outer sleeve 1 is pressed by tools such as tweezers to prevent the outer sleeve 1 from being driven to move, and then the inner sleeve 5 is extracted from the outer sleeve 1 by tools such as pliers or tweezers. After the treatment is completed, the inner sleeve 5 is reinstalled in the outer sleeve 1 in the same way and fixed by the card strip 24. Compared with the suture fixation method of the existing fixator, the operation is more convenient and quick, and will not cause inflammation and ulceration of the skin on the wound surface, and it is better to use.

[0026] In addition, the contents not described in detail in this embodiment are all within the scope of existing technology and common knowledge.

[0027] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. Construction of a fixator for the Bama miniature pig DCUs model, characterized by: It comprises an outer sleeve (1) and an inner sleeve (5) arranged inside the outer sleeve (1); The outer sleeve (1) is provided with an opening (4) on both sides of the bottom end, and the inner sleeve (5) is provided with an opening (7) on both sides of the bottom end, and the opening (7) is communicated with the opening (4); The inner sleeve (5) is fixedly connected to a support bar (8), a screw hole (9) is provided in the middle of the support bar (8), a screw shaft (10) is screwed in the screw hole (9), the upper end of the screw shaft (10) is fixedly connected to a twist bar (11), the bottom end of the screw shaft (10) is fixedly connected to a connecting shaft (14), the bottom end of the screw shaft (10) is provided with a connecting seat (15), a connecting groove (16) is provided in the interior of the connecting seat (15), and the connecting shaft (14) is rotatably connected to the connecting groove (16); The bottom end of the connecting seat (15) is fixedly connected to a connecting block (17) on both sides, and an axial hole (18) is provided on the connecting block (17). The bottom end of the connecting seat (15) is provided with a connecting rod (19) on both sides, and a notch (20) is provided on the upper end of the connecting rod (19). An axis (21) is fixedly connected inside the notch (20), and the axis (21) is rotatably connected to the axis hole (18). The bottom end of the connecting rod (19) is provided with an axis hole (22). The inner bottom end of the inner sleeve (5) is fixedly connected to a guide frame (23) on both the front and rear sides, and the inner left and right sides of the guide frame (23) are slidably connected to a clamping strip (24). The clamping strip (24) is provided with a second notch (25) at one end close to the connecting rod (19), and the inside of the second notch (25) is fixedly connected to a second shaft (26), and the second shaft (26) is rotatably connected to the second shaft hole (22), and the end of the clamping strip (24) away from the connecting rod (19) is slidably connected to the second opening (7).

2. The fixator for constructing a Bama miniature pig DCUs model according to claim 1, characterized in that: Grooves (2) are provided on both the front and rear sides of the upper end of the outer sleeve (1).

3. The fixator for constructing a Bama miniature pig DCUs model according to claim 1, characterized in that: Positioning side grooves (3) are provided on the inner walls on both sides of the upper end of the outer sleeve (1), and positioning side protrusions (6) are integrally formed on both sides of the upper end of the inner sleeve (5), and the positioning side protrusions (6) are engaged and connected with the positioning side grooves (3).

4. The fixator for constructing a Bama miniature pig DCUs model according to claim 1, characterized in that: A plurality of anti-slip strips (12) are integrally formed on both the front and rear sides of the twist strip (11).

5. The fixator for constructing a Bama miniature pig DCUs model according to claim 1, characterized in that: A twist groove (13) is provided at the upper end of the twist bar (11).

6. The fixator for constructing a Bama miniature pig DCUs model according to claim 1, characterized in that: The connecting shaft (14) and the connecting groove (16) are both convex-shaped structures.

7. The fixator for constructing a Bama miniature pig DCUs model according to claim 1, characterized in that: The guide frame (23) is a "U"-shaped structure.

8. The fixator for constructing a Bama miniature pig DCUs model according to claim 1, characterized in that: The end of the clamping strip (24) away from the connecting rod (19) is a bevel with a sharp edge.

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