An adaptive peeling substructure

By using the elastic steel sheet and limiting control unit of the adaptive dissector structure, the problem of fixed dissector head length is solved, enabling flexible adjustment and accurate positioning, which is suitable for flexible use in minimally invasive surgery.

CN121129384BActive Publication Date: 2026-02-24SHANGHAI SIXTH PEOPLES HOSPITAL
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Patent Information

Application Number
CN202511502261.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-10-21
Publication Date
2026-02-24
Estimated Expiration
2045-10-21

AI Technical Summary

Technical Problem

The existing peeler has a fixed peeling head length, which reduces its flexibility. At the same time, the scale line requires parallel observation, which leads to excessive deviation in the adjustment distance.

Method used

The self-adaptive peeler structure includes an elastic steel peeler body and multiple limit adjustment units. Through the combination of limit adjustment units and scale lines, the peeler head can achieve adaptive length adjustment and positioning. When in use, the peeler head can automatically restore the preset bending state as needed, reducing manual adjustment time.

Benefits of technology

It enables flexible length adjustment and accurate positioning of the dissection head, reducing manual adjustment time during surgery. It is suitable for scenarios where the dissection angle needs to be changed repeatedly, and is particularly suitable for the standardized configuration of minimally invasive surgical instrument boxes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a self-adaptive peeling substructure and belongs to the technical field of medical treatment. The self-adaptive peeling substructure comprises a containing block, a holding handle fixed at the end of the containing block, a peeling subbody installed on the containing block, a positioning block installed at one end of the peeling subbody in the containing block, an adapter groove formed in the positioning block, a pushing plug inserted into the adapter groove, an adjusting guide rod installed on the pushing plug and a positioning pressure rod inserted into the adjusting guide rod. The self-adaptive peeling substructure is provided with elastic steel sheets. When the peeling subbody is pressed against the patient's skeleton, the elastic steel sheets can be automatically curled after being stressed, so that the peeling subbody can be better inserted between two skeletons. The length of the peeling subbody can be adjusted according to actual needs through the movement of the peeling subbody. In addition, a plurality of limiting regulation units are arranged. When the length is adjusted, the moving distance can be limited without directly observing the scale line.
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Description

Technical Field

[0001] This invention relates to the field of medical technology, specifically to an adaptive exfoliator structure. Background Technology

[0002] In the field of surgery, especially in precision surgeries such as neurosurgery, spinal surgery, ophthalmology, and otolaryngology, tissue dissection is a crucial and highly demanding procedure. Surgeons typically use appropriate dissectors to safely and precisely separate target tissues (such as tumors, blood vessels, and nerves) from surrounding adhesions or membranous structures. Any improper operation may lead to serious complications such as tissue tearing, nerve and blood vessel damage, and massive bleeding, directly affecting the surgical outcome.

[0003] For example, the Chinese patent with announcement number CN215739301U, patent name: A mandibular body dissector, and announcement date: 2022-02-08, has a dissector body with a handheld section and a shovel-shaped dissector head. The shovel-shaped dissector head is connected to the top of the handheld section, and the inner curved surface of the shovel-shaped dissector head can fit against the bottom edge of the mandibular body. This mandibular body dissector can be used for dissecting the mandible or mandibular angle. The inner curved surface of the shovel-shaped dissector head can match the shape of the bottom edge of the mandibular body and fit against it during the dissector process, which helps to ensure the dissector accuracy. At the same time, the shovel-shaped structure of the dissector head can not only play a dissecting role, but also a cutting role, which can not only promote the entry and separation of the dissector, but also avoid wound tearing.

[0004] The existing technologies mentioned above have the following technical problems: When using existing peelers, the peeling head at the front end performs the peeling function. However, in actual use, the length of the peeling head is fixed, making it inconvenient to adjust it according to the needs of the site. This reduces the flexibility of the peeler itself. At the same time, some medical instruments have corresponding scale lines set on the instrument to facilitate the observation of the extension distance during the extension adjustment. However, the use of scale lines requires parallel observation to ensure the accuracy of data reading. In actual operation and adjustment, the movement distance cannot be observed in real time, which leads to excessive deviation in the adjustment distance.

[0005] Therefore, we propose an adaptive stripping substructure to address the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide an adaptive peeler structure to address the problems mentioned in the background art. Currently available peelers on the market use a peeling head at the front end for peeling, but in actual use, the length of the peeling head is fixed, making it inconvenient to adjust according to on-site needs. This reduces the flexibility of the peeler itself. Furthermore, some medical instruments use scale lines for telescopic adjustment to facilitate observation of the telescopic distance. However, the scale lines require parallel observation to ensure accurate data reading. In actual operation, the movement distance cannot be observed in real time, leading to excessive deviations in the adjustment distance.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an adaptive peeler structure, comprising a receiving block and a gripping handle fixed to the end of the receiving block, wherein a peeler body is mounted on the receiving block, a positioning block is mounted on one end of the peeler body located inside the receiving block, and a connecting groove is provided on the positioning block, a pushing block is inserted into the connecting groove, and an adjusting guide rod is mounted on the pushing block, a positioning pressure rod is inserted into the adjusting guide rod, and the positioning pressure rod is connected to the adjusting guide rod through an auxiliary spring, a pressing block is mounted on the bottom of the adjusting guide rod, a scale line is provided on one side of the upper surface of the receiving block, and multiple limit adjustment units are mounted on the other side of the upper surface of the receiving block, the lower end of the limit adjustment unit is inserted into a guide groove provided on the receiving block, and the limit adjustment unit is used to press the adjusting guide rod to fix the position of the peeler body after movement.

[0008] Preferably, the peeler body is configured as an elastic steel sheet, and the peeler body can move along the length direction of the receiving block.

[0009] By adopting the above technical solution, the length of the peeling sub-body can be conveniently adjusted as needed during actual use by moving the peeling sub-body on the receiving block.

[0010] Preferably, the side of the peeling body is in close contact with the internal cavity of the receiving block, and the longitudinal section of the peeling body is an arched structure. In its natural state, the peeling body is curled up. When an external force disrupts the balance of the arched structure, the peeling body quickly returns to its original curled state due to elastic deformation.

[0011] By adopting the above technical solution, after the dissector body is straightened and comes into contact with the patient's surgical site, the pressure can cause the dissector body to curl and insert between the patient's two bones.

[0012] Preferably, the width direction of the push block is aligned with the width direction of the connecting groove, the longitudinal section of the push block is set to an "n" shape, and the push block can slide along the receiving block.

[0013] By adopting the above technical solution, the lower end of the push block is made to fit against the inner wall of the connecting groove, so that when the push block is moved, the peeling body can be moved synchronously by the positioning block.

[0014] Preferably, the adjusting guide rod and the middle of the pushing block are threaded together, and the upper end of the positioning rod is provided with a bent part, the surface of the pressing block at the lower end of the positioning rod is provided with an anti-slip part, and the side of the bent part of the positioning rod near the limit control unit is provided with a spherical structure.

[0015] By adopting the above technical solution, when the push block moves, it can drive the positioning pressure rod to move synchronously. By utilizing the contact between the positioning pressure rod and the limit control unit, the pressing block at the bottom of the positioning pressure rod can move downward.

[0016] Preferably, the limit control unit includes a moving rod, the lower end of which is inserted into a guide groove, and the upper end of the moving rod is fixed with a pressure part. The lower side of the moving rod is rotatably connected to the end of the adjusting screw.

[0017] By adopting the above technical solution, the moving rod can be moved on the guide groove by adjusting the rotation of the screw on the receiving block.

[0018] Preferably, the lower outer wall of the moving rod and the inner wall of the guide groove are in contact with each other, and the longitudinal section of the pressure part at the upper end of the moving rod is set as a right-angled triangular structure.

[0019] By adopting the above technical solution, the spherical end of the positioning pressure rod can be squeezed and pushed through the inclined surface of the right triangle on the pressure part.

[0020] Preferably, the lower end of the adjusting guide rod is threaded into the interface on the transverse slider, and the transverse slider is inserted into the movable channel on the support block, wherein the interface is through-hole in the middle of the transverse slider.

[0021] By adopting the above technical solution, when the lower end of the adjusting guide rod rotates and disengages from the interface of the horizontal slider, the push block can be pulled upward to disengage from the connecting groove on the positioning block, making it easier to pull the peeling sub-body out of the receiving block later.

[0022] Preferably, the outer wall of the transverse slider and the inner wall of the movable channel on the support block are in contact with each other, and the longitudinal section of the transverse slider is set as a "convex" structure, and the support block is inserted into the middle of the push block.

[0023] By adopting the above technical solution, the "convex" structure of the horizontal slider prevents the horizontal slider from detaching from the moving channel. Furthermore, the outer wall of the horizontal slider and the inner wall of the moving channel fit together, which improves the stability of the horizontal slider when it moves in the moving channel.

[0024] Compared with the prior art, the beneficial effects of the present invention are: the adaptive dissector structure, through the setting of the elastic steel sheet, when the dissector body is pressed against the patient's bone, the elastic steel sheet can automatically curl under force, so that the dissector body can be better inserted between the two bones. At the same time, the length can be easily adjusted according to actual needs by moving the dissector body. Furthermore, by using the setting of multiple limit control units, the movement distance can be limited without directly observing the scale line during adjustment.

[0025] 1. It is equipped with a dissector body. By setting the dissector body as an elastic steel sheet, the bent dissector body can be straightened. When the dissector body comes into contact with the patient's bone and is subjected to force, the external force will disrupt the balance of the arch structure. The dissector body will quickly return to its original curled state due to elastic deformation. The curled dissector body achieves an adaptive dissection effect. The dissector body can automatically return to the preset bending state, reducing the time for manual adjustment during the operation. It is especially suitable for scenarios where the dissection angle needs to be changed repeatedly. After curling, it occupies little space and is easy to carry or store during the operation. It is especially suitable for the standardized configuration of minimally invasive surgical instrument boxes.

[0026] 2. A movable rod is provided, and multiple limit adjustment units corresponding to the distance positions are provided on the receiving block. By adjusting the rotation of the screw, the movable rod moves towards the center of the receiving block. During use, simply move the push block to make the peeling body extend outward from the receiving block. After the peeling body moves to the corresponding position, the positioning pressure rod will be automatically squeezed down by the pressure block on the movable rod, so that the pressing block and the supporting block press against each other, realizing the automatic positioning of the peeling body after extension and retraction, so that the movement distance can be limited without observing the scale line.

[0027] 3. An adjusting guide rod is provided. After the adjusting guide rod is rotated, the lower end can be disengaged from the interface in the middle of the horizontal slider. This allows the push block to be pulled upward. After the push block is moved, the lower end can be disengaged from the connecting groove on the positioning block. This makes it easy to pull the peeler body and the positioning block outward from the inside of the receiving block, which is convenient for subsequent disassembly and cleaning of the peeler body and the positioning block. Attached Figure Description

[0028] Figure 1 This is a frontal perspective view of the present invention;

[0029] Figure 2 This is a schematic diagram of the accommodating block and the peeling sub-body structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the adjusting guide rod and positioning pressure rod structure of the present invention;

[0031] Figure 4 This is a schematic diagram of the peeling sub-body and positioning block structure of the present invention;

[0032] Figure 5 This is a schematic diagram of the moving rod and pressure application part of the present invention;

[0033] Figure 6 This is a schematic diagram of the positioning pressure rod and pressing block structure of the present invention;

[0034] Figure 7 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0035] Figure 8 This is a schematic diagram of the horizontal slider and interface structure of the present invention;

[0036] Figure 9 This is a cross-sectional view of the adjusting guide rod and the transverse slider of the present invention;

[0037] Figure 10 This is a schematic diagram of the structure after the peeler body of the present invention is inserted into the joint.

[0038] In the diagram: 1. Receiving block; 2. Holding handle; 3. Peeling body; 4. Positioning block; 5. Connecting groove; 6. Pushing insert; 7. Adjusting guide rod; 8. Positioning pressure rod; 9. Pressing block; 10. Limit control unit; 101. Moving rod; 102. Pressing part; 103. Adjusting screw; 11. Guide groove; 12. Scale line; 13. Auxiliary spring; 14. Lateral slider; 15. Interlocking interface; 16. Support block; 17. Moving channel. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1: Please refer to Figures 1-10Existing peelers use a peeling head at the front end for peeling, but the fixed length of the peeling head makes it difficult to adjust according to on-site needs, thus reducing the peeler's flexibility. To solve this problem, this embodiment discloses an adaptive peeler structure, including a receiving block 1 and a grip handle 2 fixed to the end of the receiving block 1. A peeler body 3 is mounted on the receiving block 1, and a positioning block 4 is mounted on one end of the peeler body 3 inside the receiving block 1. The positioning block 4 has a connecting groove 5, and a pushing block 6 is inserted into the connecting groove 5. An adjusting guide rod 7 is mounted on the pushing block 6, and a positioning pressure rod 8 is inserted into the adjusting guide rod 7. The positioning pressure rod 8 is connected to the adjusting guide rod 7 via an auxiliary spring 13. A pressing block 9 is mounted on the bottom of the adjusting guide rod 7. The upper surface of the receiving block 1... A scale line 12 is provided on one side, and multiple limit adjustment units 10 are installed on the other side of the upper surface of the accommodating block 1. The lower end of the limit adjustment unit 10 is inserted into the guide groove 11 opened on the accommodating block 1. The limit adjustment unit 10 is used to squeeze the adjustment guide rod 7 to fix the position of the peeling sub-body 3 after it moves. The peeling sub-body 3 is set as an elastic steel sheet. The peeling sub-body 3 can move along the length direction of the accommodating block 1. The side of the peeling sub-body 3 fits with the internal cavity of the accommodating block 1. The longitudinal section of the peeling sub-body 3 is an arched structure. The peeling sub-body 3 is curled in its natural state. When the external force destroys the balance of the arched structure, the peeling sub-body 3 quickly returns to its original curled state due to elastic deformation. The width direction of the pushing block 6 fits with the width direction of the connecting groove 5. The longitudinal section of the pushing block 6 is set as an "n" shaped structure. The pushing block 6 can slide along the accommodating block 1.

[0041] During use, a pushing block 6 is inserted into the connecting groove 5 on the positioning block 4 at the end of the dissector 3. The pushing block 6 is moved on the receiving block 1. Since the width direction of the pushing block 6 and the width direction of the connecting groove 5 are mutually aligned, the moving pushing block 6 can drive the dissector 3 to move and extend synchronously using the positioning block 4. Thus, the length of the dissector 3 can be adjusted according to actual needs. After the length of the dissector 3 is adjusted, the bent dissector 3 is straightened. Then, during the operation, the handle 2 is held by hand. When the dissector 3 comes into contact with the patient's bone and is subjected to force, and the external force disrupts the balance of the arched structure, the dissector 3 quickly returns to its original curled state due to elastic deformation. The curled dissector 3 achieves an adaptive dissection effect. The dissector 3 can automatically return to the preset curved state, reducing the time for manual adjustment during the operation. It is especially suitable for scenarios where the dissection angle needs to be changed repeatedly. After curling, it occupies little space, making it easy to carry or store during the operation. It is especially suitable for the standardized configuration of minimally invasive surgical instrument boxes.

[0042] Example 2: The technical content disclosed in this example is a further improvement based on Example 1. Some medical instruments, when adjusting their telescopic range, have corresponding scale lines 12 set on the instrument to facilitate observation of the telescopic distance. However, the use of scale lines 12 requires parallel observation to ensure accurate data reading. In actual operation, the movement distance cannot be observed in real time, which can lead to excessive deviation in the adjustment distance. Figures 1-3 and Figures 7-9 As shown, to further solve this technical problem, the following technical content is disclosed in this embodiment: the middle part of the adjusting guide rod 7 and the pushing plug 6 are threadedly connected, and the upper end of the positioning pressure rod 8 is provided with a bent part. The surface of the pressing block 9 at the lower end of the positioning pressure rod 8 is provided with an anti-slip part, and the side of the bent part of the positioning pressure rod 8 near the limit control unit 10 is provided with a spherical structure. The limit control unit 10 includes a moving rod 101. The lower end of the moving rod 101 is inserted into the guide groove 11, and the upper end of the moving rod 101 is fixed with a pressure part 102. The lower side of the moving rod 101 is rotatably connected to the end of the adjusting screw 103. The lower outer wall of the moving rod 101 and the inner wall of the guide groove 11 are in contact with each other, and the longitudinal section of the pressure part 102 at the upper end of the moving rod 101 is set as a right-angled triangle structure. The lower end of the adjusting guide rod 7 is threadedly connected to the interface 15 on the transverse slider 14, and the transverse slider 14 is inserted into the movable channel 17 on the support block 16. The interface 15 is through-type in the middle of the transverse slider 14. The outer wall of the transverse slider 14 and the inner wall of the movable channel 17 on the support block 16 are in contact with each other, and the longitudinal section of the transverse slider 14 is set as a "convex" structure. The support block 16 is inserted into the middle of the push block 6.

[0043] During use, when it is necessary to adjust the length of the peeler body 3, since the receiving block 1 is equipped with multiple limit adjustment units 10, each of which corresponds to a standard scale distance, when it is necessary to adjust the distance by which the peeler body 3 extends out of the receiving block 1, it is only necessary to rotate the adjustment screw 103 on the corresponding limit adjustment unit 10. After the adjustment screw 103 rotates, it can push the moving rod 101 to move towards the center of the receiving block 1. Then, the user only needs to move the push block 6. After the push block 6 moves, it can drive the adjustment guide rod 7 and the positioning pressure rod 8 to move synchronously. When the positioning pressure rod 8 moves, the spherical end of its bent part contacts and presses against the pressure part 102 at the upper end of the pushed moving rod 101. At this time, the positioning pressure rod 8 is subjected to force, which can make the lower pressing block 9 and the supporting block 16 press against each other, thereby realizing the automatic limit of the push block 6. The lower surface of the pressing block 9 is evenly distributed with anti-slip parts. The anti-slip parts can increase the pressing force. The contact friction between the block 9 and the supporting block 16 pushes the insert block 6 to be fixed, thereby limiting the position of the dissecting body 3 after telescopic adjustment. Thus, during the operation, the telescopic adjustment of the dissecting body 3 can be performed without directly observing the scale line 12. After the operation is completed, the adjusting screw 103 is rotated in the opposite direction. After the adjusting screw 103 rotates, the moved rod 101 is reset. At this time, the moving rod 101 releases the pressure on the positioning pressure rod 8. The positioning pressure rod 8 is reset under the action of the auxiliary spring 13. Then, the adjusting guide rod 7 is rotated on the pushing insert block 6. After the adjusting guide rod 7 rotates, the lower end can be disengaged from the interface 15 in the middle of the transverse slider 14. Thus, the pushing insert block 6 can be pulled upward. After the pushing insert block 6 moves, the lower end can be disengaged from the connecting groove 5 on the positioning block 4. Thus, the dissecting body 3 and the positioning block 4 can be easily pulled out from the inside of the receiving block 1, which is convenient for subsequent disassembly and cleaning of the dissecting body 3 and the positioning block 4.

[0044] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adaptive peeler structure, comprising a receiving block (1) and a gripping handle (2) fixed to the end of the receiving block (1), wherein a peeler body (3) is mounted on the receiving block (1), characterized in that: The peeling body (3) is equipped with a positioning block (4) at one end inside the accommodating block (1), and a connecting groove (5) is provided on the positioning block (4). A push plug (6) is inserted inside the connecting groove (5), and an adjusting guide rod (7) is installed on the push plug (6). A positioning pressure rod (8) is inserted inside the adjusting guide rod (7), and the positioning pressure rod (8) is connected to the adjusting guide rod (7) through an auxiliary spring (13). A pressing block (9) is installed at the bottom of the adjusting guide rod (7). A scale line (12) is provided on one side of the upper surface of the accommodating block (1), and multiple limit control units (10) are installed on the other side of the upper surface of the accommodating block (1). The lower end of the limit control unit (10) is inserted into the guide groove (11) opened on the accommodating block (1). The limit control unit (10) is used to squeeze the adjusting guide rod (7) to fix the position of the peeling body (3) after it moves. The middle part of the adjusting guide rod (7) and the push plug (6) are threaded together, and the upper end of the positioning pressure rod (8) is provided with a bent part. The surface of the pressing block (9) at the lower end of the positioning pressure rod (8) is provided with anti-slip parts, and the side of the bent part of the positioning pressure rod (8) near the limit control unit (10) is provided with a spherical structure. The limit control unit (10) includes a moving rod (101), the lower end of which is inserted into the guide groove (11), and the upper end of which is fixed with a pressure part (102). The lower side of the moving rod (101) is rotatably connected to the end of the adjusting screw (103). The lower outer wall of the moving rod (101) and the inner wall of the guide groove (11) are in contact with each other, and the longitudinal section of the pressure part (102) at the upper end of the moving rod (101) is set as a right-angled triangular structure.

2. The adaptive peeling substructure according to claim 1, characterized in that: The peeling body (3) is configured as an elastic steel sheet, and the peeling body (3) can move along the length direction of the receiving block (1).

3. The adaptive peeling substructure according to claim 1, characterized in that: The side of the peeling body (3) is in contact with the internal cavity of the accommodating block (1), and the longitudinal section of the peeling body (3) is an arched structure. In its natural state, the peeling body (3) is curled up. When the external force disrupts the balance of the arched structure, the peeling body (3) quickly recovers its original curled state due to elastic deformation.

4. The adaptive peeling substructure according to claim 1, characterized in that: The width direction of the push block (6) is in contact with the width direction of the connecting groove (5), and the longitudinal section of the push block (6) is set as an "n" shaped structure, and the push block (6) can slide along the receiving block (1).

5. The adaptive peeling substructure according to claim 1, characterized in that: The lower end of the adjusting guide rod (7) is threaded into the interface (15) on the transverse slider (14), and the transverse slider (14) is inserted into the movable channel (17) on the support block (16). The interface (15) is through-type in the middle of the transverse slider (14).

6. The adaptive peeling substructure according to claim 5, characterized in that: The outer wall of the transverse slider (14) and the inner wall of the movable channel (17) on the support block (16) fit together, and the longitudinal section of the transverse slider (14) is set as a "convex" structure, and the support block (16) is inserted into the middle of the push block (6).

Citation Information

Patent Citations

  • Mandibular body detacher

    CN215739301U

  • Tissue removal device

    CN113692255A

  • Dura mater detacher

    CN118873209A