Surgical retractor
By introducing an extension mechanism and a connecting mechanism into the surgical hook, the spring and telescopic rod structure can enable the hook to move with the movement of human tissue, solving the problem of tissue damage caused by the hook body in the prior art, and realizing the hook body Flexible adaptation and damage reduction effects.
Patent Information
- Application Number
- CN202322942278.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-01
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2033-11-01
AI Technical Summary
Existing surgical hooks are prone to tissue damage when human tissue moves, because the hook body cannot adapt to tissue movement, resulting in pulling and damage.
A surgical hook is designed, including a handle, a connecting rod and a fixing rod. The flexible movement of the hook body is achieved through the extension mechanism and the connecting mechanism. The first and second springs, telescopic rods and limiting grooves are used to make the hook body. It can move with the movement of human tissues to avoid direct pulling.
Through this design, the hook body can move within the range of movement of human tissue, reducing the risk of damage, and adjust the position and shape of the hook body according to different surgical needs, which is suitable for different human tissues.
Smart Images
Figure CN222341241U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of general surgery, in particular to a retractor for surgery. Background Art
[0002] Surgical retractors are medical devices that are commonly used in surgical operations to assist doctors in manipulating tissues, organs or other biological tissues during surgery. These retractors usually have specific shapes and designs to meet the needs of different surgical procedures.
[0003] However, in the prior art, since human tissue is relatively soft, when the position of the human tissue hooked by the retractor moves, the human tissue is easily pulled and damaged. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a surgical retractor, which enables the human tissue hooked by the hook body to have a certain range of movement, thereby avoiding damage to the human tissue.
[0005] In order to solve the above technical problems, the technical solution of the utility model is a surgical retractor, comprising a handle, a connecting rod and a fixed rod, wherein the handle, an extension mechanism is arranged between the bottom end of the handle and the connecting rod, a connecting mechanism is arranged between the bottom end of the connecting rod and the fixed rod, and a hook body is arranged at the bottom end of the fixed rod.
[0006] As a further solution of the utility model: the extension mechanism includes an extension rod, a limiting groove is provided on the outer side wall of the extension rod, a plurality of groups of first telescopic rods are equidistantly arranged at the upper end of the connecting rod and the bottom end of the handle and close to the edge, and the first telescopic rod is located between the handle and the connecting rod and is wound with a first spring.
[0007] As a further solution of the utility model: a groove is provided on the outer side wall of the handle near the bottom, and a sleeve that fits the groove is provided at the upper end of the connecting rod and at the edge.
[0008] As a further solution of the utility model: a vertical groove matching with the extension rod is opened at the bottom of the handle, and a limiting rod is arranged between the inner side walls of the vertical groove and at the bottom position; the top of the extension rod is movably arranged inside the vertical groove through the limiting groove and the limiting rod, and the top of the sleeve is sleeved on the bottom position of the handle through the groove.
[0009] As a further solution of the utility model: the connecting mechanism includes a rotating shaft, a clamping plate is arranged on the side wall of the rotating shaft near one end, a slot is opened at the bottom end of the connecting rod, two groups of clamping slots are symmetrically opened on the inner side wall of the slot and located at the bottom position, two groups of second telescopic rods are arranged near the edge position at the bottom end of the slot, and a positioning plate is arranged at one end of the two groups of second telescopic rods and located inside the slot.
[0010] As a further solution of the utility model: the card slot and the slot are arranged perpendicular to each other, a second spring is wound on the surface of the second telescopic rod and located between the inner wall of the slot and the positioning plate, the positioning plate is movably arranged inside the slot through the second telescopic rod and the second spring, and the card plate is clamped in the internal position of the card slot through the rotating shaft and the slot.
[0011] Using the above technical solution:
[0012] The connecting rod and the fixed rod are connected together through a connecting mechanism, so that the hook body is set at the bottom end of the handle. During surgery, the hook body is moved to the specified position by holding the handle, and the hook body is used to pull it into position so that the doctor can perform the surgery. Since human tissue is relatively soft, when the position of the hooked human tissue moves, the hook body pulls the connecting rod to a position away from the handle through the fixed rod. At this time, the fixed rod gradually moves out of the vertical groove through the limit groove and the limit plate. At this time, the first spring applies a rebound force to the connecting rod through the first telescopic rod, so that the hook body can move on one side of the handle with the movement of the human tissue, wherein the sleeve can shield and protect the extension mechanism. Through the above operation, the human tissue hooked by the hook body has a certain range of movement to avoid damage to the human tissue.
[0013] The rotating shaft at one end of the fixed rod is inserted into the slot, and the rotating shaft pushes the positioning plate to shorten the second telescopic rod. Then, the rotating shaft is rotated to rotate the two sets of clamping plates into the corresponding clamping slots respectively. The second spring applies a thrust to the positioning plate through the second telescopic rod to reset it. The positioning plate applies a thrust to the clamping plate and the rotating shaft to stably set them in the slot. Then, the hook body can be assembled at the bottom end of the handle. The appropriate hook body can be selected according to the surgical needs, so that the retractor can be suitable for hooking different human tissues in different surgeries. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of a surgical retractor;
[0015] Figure 2 The figure is a schematic diagram of the structure of a surgical retractor;
[0016] Figure 3 It is a schematic diagram of the structure of a sealing ring and a clasp of a surgical retractor;
[0017] Figure 4 The present invention is a schematic diagram of the structure of a push tube of a surgical retractor.
[0018] In the figure: 1. handle; 2. connecting rod; 3. fixing rod; 4. extension mechanism; 5. extension rod; 6. limiting groove; 7. first telescopic rod; 8. first spring; 9. hook body; 10. groove; 11. sleeve; 12. connecting mechanism; 13. rotating shaft; 14. clamping plate; 15. slot; 16. clamping slot; 17. positioning plate; 18. second telescopic rod. DETAILED DESCRIPTION
[0019] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0020] Embodiment 1
[0021] See also Figure 1-Figure 4 The utility model provides a technical solution: a surgical retractor, comprising a handle 1, a connecting rod 2 and a fixed rod 3, wherein the handle 1 is provided with an extension mechanism 4 between the bottom end of the handle 1 and the connecting rod 2, a connecting mechanism 12 is provided between the bottom end of the connecting rod 2 and the fixed rod 3, and a hook body 9 is provided at the bottom end of the fixed rod 3.
[0022] See also Figure 2 The extension mechanism 4 includes an extension rod 5, a limiting groove 6 is provided on the outer wall of the extension rod 5, and a plurality of groups of first telescopic rods 7 are equidistantly arranged at the upper end of the connecting rod 2 and the bottom end of the handle 1 and near the edge. The first telescopic rod 7 is located between the handle 1 and the connecting rod 2 and is wound with a first spring 8.
[0023] A groove 10 is provided on the outer wall of the handle 1 near the bottom, and a sleeve 11 is provided at the upper end of the connecting rod 2 and at the edge thereof to fit with the groove 10 .
[0024] A vertical groove matching the extension rod 5 is provided at the bottom end of the handle 1, and a limit rod is provided between the inner side walls of the vertical groove and at the bottom position. The top of the extension rod 5 is movably arranged inside the vertical groove through the limit groove 6 to cooperate with the limit rod, and the top of the sleeve 11 is sleeved on the bottom position of the handle 1 through the groove 10.
[0025] When in use, the connecting rod 2 and the fixed rod 3 are connected together through the connecting mechanism 12, so that the hook body 9 is set at the bottom end of the handle 1. During surgery, the hook body 9 is moved to the specified position by holding the handle 1, and the hook body 9 is used to pull it into position so that the doctor can perform the surgery. Since human tissue is relatively soft, when the position of the hooked human tissue moves, the hook body 9 pulls the connecting rod 2 to a position away from the handle 1 through the fixed rod 3. At this time, the fixed rod 3 gradually moves out of the vertical groove through the limiting groove 6 and the limiting plate. At this time, the first spring 8 applies a rebound force to the connecting rod 2 through the first telescopic rod 7, so that the hook body 9 can move on one side of the handle 1 with the movement of the human tissue, wherein the sleeve 11 can shield and protect the extension mechanism 4. Through the above operation, the human tissue hooked by the hook body 9 has a certain range of movement to avoid damage to the human tissue.
[0026] Embodiment 2
[0027] See also Figure 1-Figure 4 The utility model provides a technical solution: a surgical retractor, comprising a handle 1, a connecting rod 2 and a fixed rod 3, wherein the handle 1 is provided with an extension mechanism 4 between the bottom end of the handle 1 and the connecting rod 2, a connecting mechanism 12 is provided between the bottom end of the connecting rod 2 and the fixed rod 3, and a hook body 9 is provided at the bottom end of the fixed rod 3.
[0028] See also Figure 3 and Figure 4 The connecting mechanism 12 includes a rotating shaft 13, a clamping plate 14 is arranged on the side wall of the rotating shaft 13 and near one end, a slot 15 is opened at the bottom end of the connecting rod 2, two groups of clamping grooves 16 are symmetrically opened on the inner wall of the slot 15 and located at the bottom position, two groups of second telescopic rods 18 are arranged near the edge position at the bottom end of the slot 15, and a positioning plate 17 is arranged at one end of the two groups of second telescopic rods 18 and located inside the slot 15.
[0029] The card slot 16 and the slot 15 are arranged perpendicular to each other. A second spring is wound on the surface of the second telescopic rod 18 and located between the inner wall of the slot 15 and the positioning plate 17. The positioning plate 17 is movably arranged inside the slot 15 through the second telescopic rod 18 and the second spring. The card plate 14 is clamped in the internal position of the card slot 16 through the rotating shaft 13 and the slot 15.
[0030] Specifically, a suitable hook body 9 is selected according to surgical needs, the rotating shaft 13 at one end of the fixed rod 3 is inserted into the slot 15, and the rotating shaft 13 pushes the positioning plate 17 to shorten the second telescopic rod 18, and then the rotating shaft 13 is rotated to rotate the two sets of clamping plates 14 to the corresponding clamping slots 16 respectively, and the second spring applies a thrust to the positioning plate 17 through the second telescopic rod 18 to reset it, and the positioning plate 17 applies a thrust to the clamping plate 14 and the rotating shaft 13 to stably set them in the slot 15, so that the hook body 9 can be assembled at the bottom end of the handle 1.
[0031] Working principle: Select a suitable hook body 9 according to the needs of the operation, insert the rotating shaft 13 at one end of the fixed rod 3 into the slot 15, and the rotating shaft 13 pushes the positioning plate 17 to shorten the second telescopic rod 18, then rotate the rotating shaft 13 to rotate the two sets of card plates 14 to the corresponding card slots 16 respectively, and the second spring applies a thrust to the positioning plate 17 through the second telescopic rod 18 to reset it, and the positioning plate 17 applies a thrust to the card plate 14 and the rotating shaft 13 to stably set them in the slot 15, so that the hook body 9 can be assembled at the bottom end of the handle 1. During the operation, the hook body 9 is moved to the specified position by holding the handle 1, and the hook body 9 is pulled Pull and position to facilitate the doctor to perform surgery. Since human tissue is relatively soft, when the position of the hooked human tissue moves, the hook body 9 pulls the connecting rod 2 to a position away from the handle 1 through the fixed rod 3. At this time, the fixed rod 3 gradually moves out of the vertical groove through the limiting groove 6 in cooperation with the limiting plate. At this time, the first spring 8 applies a rebound force to the connecting rod 2 through the first telescopic rod 7, so that the hook body 9 can move on one side of the handle 1 with the movement of the human tissue, wherein the sleeve 11 can shield and protect the extension mechanism 4. Through the above operation, the human tissue hooked by the hook body 9 has a certain range of movement to avoid damage to the human tissue.
[0032] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.
Claims
1. A surgical retractor, comprising a handle (1), a connecting rod (2) and a fixing rod (3), characterized in that: The handle (1) is provided with an extension mechanism (4) between the bottom end of the handle (1) and the connecting rod (2), a connecting mechanism (12) is provided between the bottom end of the connecting rod (2) and the fixing rod (3), and a hook body (9) is provided at the bottom end of the fixing rod (3).
2. A surgical retractor according to claim 1, characterized in that: The extension mechanism (4) comprises an extension rod (5), the outer side wall of the extension rod (5) is provided with a limiting groove (6), a plurality of groups of first telescopic rods (7) are equidistantly arranged at the upper end of the connecting rod (2) and the bottom end of the handle (1) and close to the edge, and the first telescopic rod (7) is located between the handle (1) and the connecting rod (2) and is wound with a first spring (8).
3. A surgical retractor according to claim 2, characterized in that: A groove (10) is provided on the outer wall of the handle (1) near the bottom, and a sleeve (11) is provided at the upper end of the connecting rod (2) and at the edge thereof, and is matched with the groove (10).
4. A surgical retractor according to claim 3, characterized in that: The bottom end of the handle (1) is provided with a vertical groove that matches the extension rod (5), and a limit rod is provided between the inner side walls of the vertical groove and at the bottom position. The top of the extension rod (5) is movably arranged inside the vertical groove in cooperation with the limit rod through the limit groove (6), and the top of the sleeve (11) is sleeved at the bottom position of the handle (1) through the groove (10).
5. A surgical retractor according to claim 1, characterized in that: The connecting mechanism (12) comprises a rotating shaft (13), a clamping plate (14) is arranged on a side wall of the rotating shaft (13) and near one end thereof, a slot (15) is arranged at the bottom end of the connecting rod (2), two groups of clamping grooves (16) are symmetrically arranged on the inner side wall of the slot (15) and at the bottom thereof, two groups of second telescopic rods (18) are arranged near the edge of the inner bottom end of the slot (15), and a positioning plate (17) is arranged at one end of the two groups of second telescopic rods (18) and at an inner position of the slot (15).
6. A surgical retractor according to claim 5, characterized in that: The card slot (16) and the slot (15) are arranged perpendicular to each other; a second spring is wound around the surface of the second telescopic rod (18) and located between the inner wall of the slot (15) and the positioning plate (17); the positioning plate (17) is movably arranged inside the slot (15) in cooperation with the second spring through the second telescopic rod (18); and the card plate (14) is arranged inside the card slot (16) in cooperation with the slot (15) through the rotating shaft (13).