Rear sternum membrane stripping device

Abstract

The utility model discloses a sternum posterior sternum membrane stripping device, belongs to the technical field of medical auxiliary appliances, and solves the problems that the operation can only be performed by an operator, an assistant cannot effectively participate, the sternum is difficult to be completely separated from a great heart vessel gap, and the operation difficulty is increased when the tail part of fingers or forceps is used for performing blunt separation in the prior art. Comprising a scraping head straight section, the rear end of the scraping head straight section is connected with the extension connecting rod, and a scraping head bent section is arranged at the front end of the scraping head straight section. The device is reasonable in design, compact in structure, sufficient in extension length, convenient to operate, capable of completely separating gaps between the sternum and the heart as well as between the sternum and great vessels, capable of effectively reducing risks in the operation process, high in safety, capable of remarkably improving the operation efficiency and success rate and high in practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical auxiliary appliances, and particularly relates to a retrosternal sternal membrane stripping device. Background Art

[0002] In the existing medical technology, when doctors need to perform mediastinal surgery or replace the heart and large blood vessels, the method of median sternotomy is usually adopted. During this operation process, doctors often rely on their own fingers or the tails of forceps to perform blunt separation to open the space between the sternum and the heart and large blood vessels; subsequently, doctors use a saw to saw open the sternum. However, this traditional blunt separation method has some obvious deficiencies: First, since this separation work can only be operated by the surgeon in person, the assistant cannot effectively participate in this process, which to a certain extent limits the cooperation efficiency of the surgical team; Second, when using fingers or the tails of forceps for separation, the length is often insufficient, resulting in the inability to completely separate the space between the sternum and the heart and large blood vessels, and the separation effect cannot be guaranteed, increasing the difficulty and risk of the operation. Therefore, it is necessary to improve the existing technology for the separation method and device between the sternum and the heart and large blood vessels. Content of the Utility Model

[0003] The utility model aims at the above problems and provides a retrosternal sternal membrane stripping device with sufficient extended length, convenient operation, capable of completely separating the space between the sternum and the heart and large blood vessels, effectively reducing the risk during the operation, high safety, significantly improving the operation efficiency and success rate, and strong practicability.

[0004] The technical solution adopted by the utility model is: The retrosternal sternal membrane stripping device includes a holding handle, and is characterized in that: finger grooves for the operator's finger positioning and force application are arranged on the holding handle, an extension connecting rod is arranged at the front end of the holding handle, a stripping scraper head is arranged at the front end of the extension connecting rod, the stripping scraper head includes a straight section of the scraper head, the rear end of the straight section of the scraper head is connected to the extension connecting rod, and a bent section of the scraper head is arranged at the front end of the straight section of the scraper head.

[0005] The holding handle and the extension connecting rod are of a split assembly structure. A connecting rod connecting slot is arranged at the front end of the holding handle. Correspondingly, a handle connecting plug post is arranged at the rear end of the extension connecting rod. The split assembly connection between the extension connecting rod and the holding handle is realized by the interference fit connection between the handle connecting plug post and the connecting rod connecting slot, improving the use flexibility of the device.

[0006] An anti - detachment locking block is provided on the handle connection plug at the rear end of the extension connecting rod. On the inner wall of the connecting - rod connection slot at the front end of the holding handle, a block guiding groove is provided for cooperating with the anti - detachment locking block. And at the middle position of the block guiding groove, corresponding to the anti - detachment locking block on the plug, a block rotation locking groove is also provided. The block guiding groove is used to guide the insertion and extraction of the anti - detachment locking block on the handle connection plug. Through the relative rotation of the holding handle and the extension connecting rod, the anti - detachment locking block on the handle connection plug is locked with the block rotation locking groove in the connecting - rod connection slot, thereby effectively improving the reliability of the device in use.

[0007] The peeling scraper head and the extension connecting rod are of a split - assembly structure. A scraper connecting rod is provided at the connecting end of the peeling scraper head. At the end of the scraper connecting rod, a scraper connection locking block is provided, and clamping protrusions are respectively provided on the upper and lower sides of the scraper connection locking block. Correspondingly, at the front end of the extension connecting rod, a scraper connection slot for cooperating with the scraper connection locking block is provided, and clamping pits for cooperating with the clamping protrusions are respectively provided on both inner side walls of the scraper connection slot. Through the mating connection of the scraper connection locking block at the end of the scraper connecting rod and the scraper connection slot at the front end of the extension connecting rod, the split - assembly connection of the peeling scraper head and the extension connecting rod is realized. At the same time, by the mating clamping of the clamping protrusions on the scraper connection locking block and the clamping pits inside the scraper connection slot, the connection between the peeling scraper head and the extension connecting rod is tightened.

[0008] An electric - saw running opening is provided on the peeling scraper head. So that during the process of separating the space between the sternum and the heart and large blood vessels, the sternum posterior space can be separated while using an electric saw to saw open the sternum, which is convenient for cooperative operation and improves the surgical efficiency.

[0009] An electric - saw running groove with a closed bottom is provided on the peeling scraper head. By using the electric - saw running groove with a closed bottom, it is possible to prevent the electric saw from accidentally touching other human tissues, thereby improving the operation safety during the cooperative operation process of separating the sternum posterior space while using an electric saw to saw open the sternum.

[0010] The extension connecting rod is of a multi - section assembled structure. Through the multi - section assembled extension connecting rod structure, the applicability of the connecting rod length is improved.

[0011] The extension connecting rod is a straight connecting rod or a bent connecting rod. According to the specific usage situation and operating environment, the shape of the extension connecting rod can be flexibly changed to facilitate surgical operation.

[0012] The included angle between the straight section and the bent section of the peeling scraper head is 120 degrees to 160 degrees. To improve the operation flexibility of the peeling scraper head when separating the space between the sternum and the heart and large blood vessels, ensure the separation effect, and improve the surgical efficiency and success rate.

[0013] The thickness of the stripping scraper head is 0.5 mm to 2 mm, so as to fully ensure the separation effect while ensuring that the structural strength of the scraper head meets the usage requirements.

[0014] The beneficial effects of the present utility model: Since the present utility model adopts a holding handle, finger grooves are provided on the holding handle, an extension link is provided at the front end of the holding handle, a stripping scraper head is provided at the front end of the extension link, and the stripping scraper head includes a straight section of the scraper head. The rear end of the straight section of the scraper head is connected to the extension link, and the front end of the straight section of the scraper head is provided with a bent section of the scraper head. Therefore, its design is reasonable, the structure is compact, the extension length is sufficient, it is convenient to operate, and the practicability is strong. Using this retrosternal sternal membrane stripping device to separate the space between the sternum and the great vessels of the heart will become simpler. Even an assistant can easily master and effectively operate it, and can completely separate the space between the sternum and the heart and great vessels. Moreover, the device has high safety during the operation and can effectively reduce the risks during the operation. At the same time, since the design of the device takes into account the convenience and safety of the operation, it can significantly improve the efficiency and success rate of the operation; furthermore, the use of the device can also reduce the physical burden on doctors, make the operation process smoother, and is conducive to providing a more safe and reliable medical service for patients. Description of the Drawings

[0015] Figure 1 is a structural schematic diagram of the present utility model (the extension link is a straight link).

[0016] Figure 2 is Figure 1 an exploded structural schematic diagram of the connection part between the holding handle and the extension link in

[0017] Figure 3 is Figure 2 an internal structural cross-sectional view of the link connection slot in

[0018] Figure 4 is Figure 1 a structural schematic diagram of the extension link in

[0019] Figure 5 is Figure 1 an exploded structural schematic diagram of the connection part between the stripping scraper head and the extension link in

[0020] Figure 6 is Figure 5 another structural schematic diagram of the stripping scraper head in (a saw running opening is provided on the stripping scraper head).

[0021] Figure 7 is Figure 5 another structural schematic diagram of the stripping scraper head in (a saw running groove is provided on the stripping scraper head).

[0022] Figure 8 is Figure 7 the front view in the direction A.

[0023] Figure 9 It is a schematic diagram of an implementation manner in which the extension connecting rod of the present utility model adopts a bent connecting rod structure.

[0024] Explanation of the numbers in the figure: 1. Holding handle, 2. Finger groove, 3. Extension connecting rod, 4. Stripping scraper head, 5. Connecting rod connection slot, 6. Block guide groove, 7. Handle connection plug post, 8. Anti - detachment block, 9. Block rotation locking groove, 10. Straight connecting rod, 11. Straight section of the scraper head, 12. Bent section of the scraper head, 13. Scraper head connecting rod, 14. Scraper head connection block, 15. Clamping protrusion, 16. Scraper head connection card slot, 17. Clamping pit, 18. Saw - running opening, 19. Saw - running groove, 20. Bent connecting rod. Specific implementation manner

[0025] According to Figures 1 to 9 The specific structure of the present utility model will be described in detail. The retrosternal sternal membrane stripping device includes a holding handle 1, and two groups of finger grooves 2 for facilitating the positioning and force application of the operator's fingers are arranged on the holding handle 1; an extension connecting rod 3 is arranged at the front end of the holding handle 1, and the holding handle 1 and the extension connecting rod 3 are of a split - assembly structure. A connecting rod connection slot 5 is arranged at the front end of the holding handle 1. Correspondingly, a handle connection plug post 7 is arranged at the rear end of the extension connecting rod 3, so as to realize the split - assembly connection of the extension connecting rod 3 and the holding handle 1 through the interference fit connection between the handle connection plug post 7 and the connecting rod connection slot 5, and improve the flexibility of use of the device.

[0026] Moreover, the extension connecting rod 3 can adopt a multi - section connection structure form (for example: according to the length of the sternum, the length of the multi - section connected extension connecting rod can be 35 cm), so as to improve the applicability of the connecting rod length through the multi - section connected extension connecting rod structure. It can be understood that the shape of the extension connecting rod 3 can adopt a straight connecting rod 10 or a bent connecting rod 20 (for example: the length of the connecting rod can be 15 cm), so as to flexibly change the shape of the extension connecting rod 3 according to the specific use situation and operation environment to facilitate the surgical operation. In order to reduce the weight, the holding handle 1 and the extension connecting rod 3 can adopt a hollow structure form.

[0027] Moreover, two groups of anti - detachment blocks 8 are provided on the handle connection plug post 7 at the rear end of the split - type extension connecting rod 3. And according to specific usage requirements, the anti - detachment blocks 8 can also adopt the structural form of elastic blocks. On the inner wall of the connecting rod connection slot 5 at the front end of the holding handle 1, two groups of block guiding grooves 6 for cooperating with the anti - detachment blocks 8 are provided. And at the middle position of the block guiding groove 6 corresponding to the anti - detachment blocks 8 on the handle connection plug post 7, a block rotation locking groove 9 is also provided. Thus, the block guiding groove 6 is used to guide the insertion and extraction of the anti - detachment blocks 8 on the handle connection plug post 7. And through the relative rotation of the holding handle 1 and the extension connecting rod 3, the anti - detachment blocks 8 on the handle connection plug post 7 are locked and connected with the block rotation locking groove 9 in the connecting rod connection slot 5, effectively improving the reliability of the device in use.

[0028] At the front end of the extension connecting rod 3, a peeling and scraping head 4 for separating the space between the sternum and the heart and large blood vessels is also provided. The peeling and scraping head 4 is composed of a sheet - shaped scraping head straight section 11. The rear end of the scraping head straight section 11 is connected to the front end of the extension connecting rod 3, and a sheet - shaped scraping head bent section 12 is provided at the front end of the scraping head straight section 11. For facilitating the cooperative operation and improving the surgical efficiency, a saw - running opening 18 can be provided in the middle of the peeling and scraping head 4 (as Figure 6 shown). So that during the process of separating the space between the sternum and the heart and large blood vessels, the posterior sternal space can be separated while using a saw to saw open the sternum. In addition, for the purpose of improving the operation safety during the cooperative operation process of separating the posterior sternal space while using a saw to saw open the sternum, the saw - running opening 18 provided in the middle of the peeling and scraping head 4 can be improved into a saw - running groove 19 with a closed bottom (as Figure 7 and Figure 8 shown). Furthermore, by using the saw - running groove 19 with a closed bottom, the saw can be prevented from accidentally touching other human tissues.

[0029] The included angle range between the scraping head straight section 11 and the scraping head bent section 12 of the peeling and scraping head 4 is between 120 degrees and 160 degrees (for example: it can be 135 degrees), so as to improve the operation flexibility of the peeling and scraping head 4 when separating the space between the sternum and the heart and large blood vessels, ensure the separation effect, and improve the surgical efficiency and success rate. At the same time, the thickness range of the sheet - shaped peeling and scraping head 4 is between 0.5 mm and 2 mm, so as to fully ensure the separation effect while ensuring that the structural strength of the scraping head meets the usage requirements.

[0030] Moreover, the peeling cutter head 4 and the extension connecting rod 3 are also of a split assembly structure. A cutter head connecting rod 13 is provided at the connecting end of the peeling cutter head 4, a cutter head connecting block 14 is provided at the end of the cutter head connecting rod 13, and clamping protrusions 15 are respectively provided on the upper and lower sides of the cutter head connecting block 14. Correspondingly, a cutter head connecting slot 16 for mating connection with the cutter head connecting block 14 is provided at the front end of the extension connecting rod 3, and clamping pits 17 for mating clamping with the clamping protrusions 15 are respectively provided on the two side walls inside the cutter head connecting slot 16. Furthermore, through the mating connection between the cutter head connecting block 14 at the end of the cutter head connecting rod 13 and the cutter head connecting slot 16 at the front end of the extension connecting rod 3, the split assembly connection between the peeling cutter head 4 and the extension connecting rod 3 is realized; at the same time, the clamping connection between the clamping protrusions 15 on the cutter head connecting block 14 and the clamping pits 17 inside the cutter head connecting slot 16 is utilized to fasten the connection between the peeling cutter head 4 and the extension connecting rod 3.

[0031] When the retrosternal sternal membrane peeling device is used, first, according to the specific usage situation and operating environment, select the length and shape of the extension connecting rod 3. For example: the applicability of the connecting rod length can be improved through the multi-section assembled extension connecting rod structure, and the shape of the extension connecting rod 3 can be flexibly changed by using the straight connecting rod 10 or the bent connecting rod 20 to facilitate surgical operation. Then, through the interference fit connection between the handle connecting plug post 7 of the extension connecting rod 3 and the connecting rod connecting slot 5 of the holding handle 1, the split assembly connection between the extension connecting rod 3 and the holding handle 1 is realized, and through the relative rotation of the holding handle 1 and the extension connecting rod 3, the locking connection between the anti-detachment clamping block 8 on the handle connecting plug post 7 and the clamping block rotation locking groove 9 in the connecting rod connecting slot 5 is realized. After that, select the peeling cutter head 4 according to the size and shape required for actual operation. For example: the degree of the angle between the straight cutter head section 11 and the bent cutter head section 12 of the peeling cutter head 4, the thickness of the sheet-shaped peeling cutter head 4, the length and width dimensions of the peeling cutter head 4, and whether it is used in cooperation with a saw (that is: whether a saw running opening 18 or a saw running groove 19 is provided); and through the mating connection between the cutter head connecting block 14 at the end of the cutter head connecting rod 13 of the peeling cutter head 4 and the cutter head connecting slot 16 at the front end of the extension connecting rod 3, the split assembly connection between the peeling cutter head 4 and the extension connecting rod 3 is realized. The extension length of the retrosternal sternal membrane peeling device is sufficient and convenient for operation, can completely separate the gap between the sternum and the heart and large blood vessels, can reduce the risk during the operation, improve the operation efficiency and success rate, and has strong practicability.

Claims

1. A retrosternal periosteum stripping device, comprising a gripping handle (1), characterized in that: The gripping handle (1) is provided with a finger groove (2) for positioning and applying force to the operator's fingers, an extension connecting rod (3) is provided at the front end of the gripping handle (1), a stripping scraper head (4) is provided at the front end of the extension connecting rod (3), and the stripping scraper head (4) comprises a scraper head straight section (11), the rear end of the scraper head straight section (11) is connected to the extension connecting rod (3), and the front end of the scraper head straight section (11) is provided with a scraper head bent section (12).

2. The retrosternal periosteum stripping device according to claim 1, characterized in that: The gripping handle (1) and the extended connecting rod (3) are of a split assembly structure; the front end of the gripping handle (1) is provided with a connecting rod connecting slot (5), and correspondingly, the rear end of the extended connecting rod (3) is provided with a handle connecting plug post (7).

3. The retrosternal periosteum stripping device according to claim 2, characterized in that: An anti-drop block (8) is provided on the handle connecting plug column (7) at the rear end of the extended connecting rod (3), and a block guide groove (6) for cooperating with the anti-drop block (8) is provided on the inner wall of the connecting rod connecting slot (5) at the front end of the holding handle (1), and a block rotation locking groove (9) is also provided in the middle of the block guide groove (6) at a position corresponding to the anti-drop block (8) on the plug column.

4. The retrosternal periosteum stripping device according to claim 1, characterized in that: The stripping scraper (4) and the extension connecting rod (3) are a split assembly structure. The connection end of the stripping scraper (4) is provided with a scraper connecting rod (13). The end of the scraper connecting rod (13) is provided with a scraper connecting clamp (14). The upper and lower sides of the scraper connecting clamp (14) are respectively provided with clamping protrusions (15). Correspondingly, the front end of the extension connecting rod (3) is provided with a scraper connecting clamp groove (16) for matching and connecting with the scraper connecting clamp block (14), and the two side walls inside the scraper connecting clamp groove (16) are respectively provided with clamping pits (17) for matching and connecting with the clamping protrusions (15).

5. The retrosternal periosteum stripping device according to claim 1, characterized in that: The stripping scraper head (4) is provided with an electric saw travel opening (18).

6. The retrosternal periosteum stripping device according to claim 1, characterized in that: The stripping scraper head (4) is provided with an electric saw running groove (19) with a closed bottom.

7. The retrosternal periosteum stripping device according to claim 1, characterized in that: The extended connecting rod (3) is a structure composed of multiple sections.

8. The retrosternal periosteum stripping device according to claim 1, characterized in that: The extended connecting rod (3) is a straight connecting rod (10) or a bent connecting rod (20).

9. The retrosternal periosteum stripping device according to claim 1, characterized in that: The included angle between the straight section (11) and the curved section (12) of the stripping scraper (4) is 120 to 160 degrees.

10. The retrosternal periosteum stripping device according to claim 1, characterized in that: The thickness of the stripping scraper (4) is 0.5 mm to 2 mm.

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