Retraction device for nervous system clinical operation

Abstract

The utility model relates to the technical field of medical instruments, and discloses a traction device for nervous system clinical surgery, which comprises a main body mechanism and a support mechanism, the support mechanism is positioned on the left side of the main body mechanism, and the main body mechanism comprises a device body, an electric motor, a double-sided threaded rod, a movable nut and a traction plate. According to the traction device for the nervous system clinical operation, by installing the main body mechanism, when the device body conducts traction operation of the nervous system clinical operation, a medical worker can adjust the distance between the two sets of traction plates through operation, and therefore the traction force is adjusted; by means of the design of the auxiliary plate, the surgical site can be fully expanded, traction operation at different angles is achieved, the device can be suitable for supporting wound openings of different sizes, the view field of medical workers in the surgical process is expanded, normal operation of a clinical surgery of the nervous system is guaranteed, and the practicability and flexibility of the device body are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a retractor for clinical surgery of the nervous system. Background Art

[0002] Neurosurgery is a branch of surgery. It is a discipline that uses surgery as the main treatment method in surgery, applies unique neurosurgery research methods, studies the human nervous system, and explores new diagnosis, treatment, and prevention technologies. Retraction devices are usually used in clinical neurosurgery.

[0003] The existing patent document with technical disclosure number CN217244567U provides a retraction device for spinal surgery. The utility model can drive the threaded rod to rotate by running the driving motor, so as to adjust the left and right distance of the retractor. The front and rear positions of the retractor can be adjusted by the universal wheel movable base, so that the retractor can be adjusted differently according to needs and can be adjusted to a suitable position, so as to achieve better retraction effect and facilitate the operation.

[0004] However, the existing retraction devices have poor retraction effects on the surgical site when in use. The single retraction angle is not convenient for ensuring sufficient expansion of the surgical site, resulting in stretching and displacement of human tissue during the retraction process, which can easily block the wound, affect the field of vision of medical staff, and affect the normal progress of clinical surgery. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The utility model aims to provide a retractor for clinical surgery of the nervous system, so as to solve the problem that the single retractor angle of the existing retractor proposed in the above background technology is not convenient for ensuring sufficient expansion of the surgical site.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a retraction device for clinical surgery of the nervous system, comprising a main body mechanism and a support mechanism, wherein the support mechanism is located on the left side of the main body mechanism, the main body mechanism comprises a device body, an electric motor, a double-sided threaded rod, a movable nut and a retraction plate, the electric motor is fixedly mounted at the rear end of the inner end of the device body, the double-sided threaded rod is fixedly mounted at the transmission end of the front end of the electric motor, the movable nut is threadedly connected to the front and rear ends of the outer end, and the retraction plate is fixedly mounted at the right end of the movable nut;

[0009] The main body mechanism also includes a placement slot, an electric push rod, a pushing rod, a connecting rod and an auxiliary plate. The placement slot is fixedly arranged at the upper end of the retraction plate, the electric push rod is fixedly installed at the left end of the inner end of the placement slot, the pushing rod is fixedly installed at the transmission end of the right end of the electric push rod, the connecting rod is fixedly installed at the right end of the pushing rod, the auxiliary plate is fixedly installed at the lower end of the connecting rod, and the auxiliary plate is movably connected to the retraction plate.

[0010] Preferably, the supporting mechanism includes a U-shaped clamp and a limiting screw, the U-shaped clamp is located on the left side of the device body, the limiting screw is threadedly installed on the left end of the U-shaped clamp, and the right end of the limiting screw is located inside the U-shaped clamp. The design of the U-shaped clamp provides a supporting effect for the device body.

[0011] Preferably, the support mechanism also includes a positioning plate and a support rod, the positioning plate is fixedly mounted on the right end of the limiting screw, and the support rod is fixedly mounted on the upper end of the U-shaped clamp, and the positioning plate can complete the installation of the U-shaped clamp under the drive of the limiting screw.

[0012] Preferably, the support mechanism also includes a support frame, a transmission motor and a screw rod. The support frame is fixedly mounted on the upper end of the support rod, the transmission motor is fixedly mounted on the right end of the inner end of the support frame, and the screw rod is fixedly mounted on the transmission end of the left end of the transmission motor. The transmission motor can drive the connecting screw block to make a linear motion on the screw rod.

[0013] Preferably, the supporting mechanism also includes a movable disk and a connecting screw block. The movable disk is fixedly mounted on the left end of the inner end of the supporting frame. The left end of the screw rod is rotatably connected to the movable disk. The connecting screw block is threadedly connected to the outer end of the screw rod. The design of the movable disk provides a supporting effect for the screw rod.

[0014] Preferably, the supporting mechanism also includes a hydraulic cylinder and an adjusting rod, the hydraulic cylinder is fixedly mounted on the lower end of the connecting screw block, the adjusting rod is fixedly mounted on the transmission end of the lower end of the hydraulic cylinder, the device body is located at the lower end of the adjusting rod, and the design of the hydraulic cylinder can appropriately adjust the height of the device body.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The retraction device for clinical surgery of the nervous system, by installing the main body mechanism, realizes that when the device body is performing the retraction operation of the clinical surgery of the nervous system, the medical staff can adjust the distance between the two groups of retraction plates by operation, so as to adjust the retraction force. With the design of the auxiliary plate, the surgical site can be fully opened to achieve retraction operations at different angles, and it can be used for supporting incisions of different sizes, which expands the field of vision of the medical staff during the operation, ensures the normal progress of the clinical surgery of the nervous system, and improves the practicality and flexibility of the device body;

[0017] 2. The retractor for clinical surgery of the nervous system is installed with a support mechanism, so that when the device is in use, medical staff can quickly install it on the bed or the bracket through operation, so that it can be stably installed around the operating table, which solves the inconvenience caused by the need for a base to be fixed in the traditional way, reduces the floor space occupied during the use of the device, and at the same time makes the retractor more stable during use, thereby improving the convenience of the device.

[0018] 3. The retraction device for clinical neurological surgery is equipped with a transmission motor and a hydraulic cylinder, so that when the device body is performing retraction operations in clinical neurological surgery, medical staff can properly adjust the height and position of the device body through operation. The device body can fully correspond to the surgical site, which expands the adjustment range of the retraction plate, thereby further improving the applicability of the device body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the main mechanism of the utility model;

[0021] Figure 3 This is a schematic diagram of the partial three-dimensional structure of the retraction plate of the utility model;

[0022] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the support mechanism of the utility model.

[0023] In the figure: 1. Main mechanism; 101. Device body; 102. Electric motor; 103. Double-sided threaded rod; 104. Movable nut; 105. Pull-out plate; 106. Placement slot; 107. Electric push rod; 108. Push rod; 109. Connecting rod; 110. Auxiliary plate; 2. Support mechanism; 201. U-shaped clamp; 202. Limit screw; 203. Positioning plate; 204. Support rod; 205. Support frame; 206. Transmission motor; 207. Screw; 208. Movable disk; 209. Connecting screw block; 210. Hydraulic cylinder; 211. Adjusting rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 - Figure 4 The utility model provides a technical solution: a retractor for clinical surgery of the nervous system, comprising a main body mechanism 1 and a support mechanism 2, the support mechanism 2 is located on the left side of the main body mechanism 1, the main body mechanism 1 comprises a device body 101, an electric motor 102, a double-sided threaded rod 103, a movable nut 104 and a retractor plate 105, the electric motor 102 is fixedly mounted at the rear end of the inner end of the device body 101, the double-sided threaded rod 103 is fixedly mounted at the transmission end of the front end of the electric motor 102, the movable nut 104 is threadedly connected to the front and rear ends of the outer end, and the retractor plate 105 is fixedly mounted at the right end of the movable nut 104;

[0026] The main body mechanism 1 also includes a placement slot 106, an electric push rod 107, a pushing rod 108, a connecting rod 109 and an auxiliary plate 110. The placement slot 106 is fixedly arranged at the upper end of the retraction plate 105, the electric push rod 107 is fixedly installed at the left end of the inner end of the placement slot 106, the pushing rod 108 is fixedly installed at the transmission end of the right end of the electric push rod 107, the connecting rod 109 is fixedly installed at the right end of the pushing rod 108, and the auxiliary plate 110 is fixedly installed at the lower end of the connecting rod 109. The auxiliary plate 110 is movably connected with the retraction plate 105. Under the drive of the electric motor 102, the movable nut 104 is driven to move in opposite directions on the double-sided threaded rod 103, thereby driving the two groups of retraction plates 105 to move outward to perform a retraction operation on the wound. The electric push rod 107 is started to push the auxiliary plate 110 to move and adjust it to a suitable position to achieve full expansion of the wound, and then the surgical operation on the nervous system can be performed.

[0027] The support mechanism 2 includes a U-shaped clamping plate 201 and a limiting screw 202. The U-shaped clamping plate 201 is located on the left side of the device body 101. The limiting screw 202 is threadedly installed on the left end of the U-shaped clamping plate 201. The right end of the limiting screw 202 is located inside the U-shaped clamping plate 201. The support mechanism 2 also includes a positioning plate 203 and a support rod 204. The positioning plate 203 is fixedly installed on the right end of the limiting screw 202. The support rod 204 is fixedly installed on the upper end of the U-shaped clamping plate 201. The support mechanism 2 also includes a support The support frame 205, the transmission motor 206 and the screw rod 207, the support frame 205 is fixedly mounted on the upper end of the support rod 204, the transmission motor 206 is fixedly mounted on the right end of the inner end of the support frame 205, the screw rod 207 is fixedly mounted on the transmission end of the left end of the transmission motor 206, the support mechanism 2 also includes a movable disk 208 and a connecting screw block 209, the movable disk 208 is fixedly mounted on the left end of the inner end of the support frame 205, the left end of the screw rod 207 is rotatably connected to the movable disk 208, and the connecting screw block 209 is threadedly connected At the outer end of the screw rod 207, the support mechanism 2 also includes a hydraulic cylinder 210 and an adjusting rod 211. The hydraulic cylinder 210 is fixedly mounted on the lower end of the connecting screw block 209, and the adjusting rod 211 is fixedly mounted on the transmission end of the lower end of the hydraulic cylinder 210. The device body 101 is located at the lower end of the adjusting rod 211. When the device body 101 is used for retraction operation of clinical surgery of the nervous system, the medical staff places the device body 101 around the operating table so that the U-shaped splint 201 is located above the bed or the bracket and corresponds to the surgical site. Then, by rotating the limit screw 202, the positioning plate 203 is fully contacted with the connected bed or the bracket to complete the installation of the device body 101. By operating the transmission motor 206, the connecting screw block 209 is driven to move on the screw rod 207. The connecting screw block 209 drives the device body 101 to adjust to a position suitable for the wound, and then the hydraulic cylinder 210 is started to push the device body 101 downward so that the retraction plate 105 is fully contacted with the wound.

[0028] Working principle: When the device body 101 is used for retraction in clinical neurological surgery, the medical staff places the device body 101 around the operating table so that the U-shaped splint 201 is located above the bed or the support and corresponds to the surgical site. Then, by rotating the limit screw 202, the positioning plate 203 is fully in contact with the connected bed or the support to complete the installation of the device body 101. By operating the transmission motor 206, the connecting screw block 209 is driven to move on the screw rod 207, and the connecting screw block 209 is driven to move. The device body 101 is adjusted to a position suitable for the wound, and then the hydraulic cylinder 210 is started to push the device body 101 downward so that the retraction plate 105 is in full contact with the wound. Driven by the electric motor 102, the movable nut 104 is driven to move in opposite directions on the double-sided threaded rod 103, thereby driving the two groups of retraction plates 105 to move outward to retract the wound. The electric push rod 107 is started to push the auxiliary plate 110 to move and adjust it to a suitable position to achieve full expansion of the wound, and then the surgical operation on the nervous system can be performed.

[0029] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A retractor for clinical surgery of the nervous system, comprising a main body (1) and a support mechanism (2), characterized in that: The support mechanism (2) is located on the left side of the main mechanism (1); the main mechanism (1) comprises a device body (101), an electric motor (102), a double-sided threaded rod (103), a movable nut (104) and a retraction plate (105); the electric motor (102) is fixedly mounted at the rear end of the inner end of the device body (101); the double-sided threaded rod (103) is fixedly mounted at the transmission end of the front end of the electric motor (102); the movable nut (104) is threadedly connected to the front and rear ends of the outer end; and the retraction plate (105) is fixedly mounted at the right end of the movable nut (104); The main body mechanism (1) further comprises a placement slot (106), an electric push rod (107), a pushing rod (108), a connecting rod (109) and an auxiliary plate (110); the placement slot (106) is fixedly arranged at the upper end of the retraction plate (105); the electric push rod (107) is fixedly installed at the left end of the inner end of the placement slot (106); the pushing rod (108) is fixedly installed at the transmission end of the right end of the electric push rod (107); the connecting rod (109) is fixedly installed at the right end of the pushing rod (108); the auxiliary plate (110) is fixedly installed at the lower end of the connecting rod (109); and the auxiliary plate (110) is movably connected to the retraction plate (105).

2. A retractor for clinical surgery of the nervous system according to claim 1, characterized in that: The support mechanism (2) comprises a U-shaped clamping plate (201) and a limiting screw (202); the U-shaped clamping plate (201) is located on the left side of the device body (101); the limiting screw (202) is threadedly mounted on the left end of the U-shaped clamping plate (201); and the right end of the limiting screw (202) is located inside the U-shaped clamping plate (201).

3. A retractor for clinical surgery of the nervous system according to claim 2, characterized in that: The support mechanism (2) further comprises a positioning plate (203) and a support rod (204); the positioning plate (203) is fixedly mounted on the right end of the limiting screw (202); and the support rod (204) is fixedly mounted on the upper end of the U-shaped clamping plate (201).

4. A retractor for clinical surgery of the nervous system according to claim 3, characterized in that: The support mechanism (2) further comprises a support frame (205), a transmission motor (206) and a screw rod (207); the support frame (205) is fixedly mounted on the upper end of the support rod (204); the transmission motor (206) is fixedly mounted on the right end of the inner end of the support frame (205); and the screw rod (207) is fixedly mounted on the transmission end of the left end of the transmission motor (206).

5. A retractor for clinical surgery on the nervous system according to claim 4, characterized in that: The support mechanism (2) further comprises a movable disk (208) and a connecting screw block (209); the movable disk (208) is fixedly mounted on the left end of the inner end of the support frame (205); the left end of the screw rod (207) is rotatably connected to the movable disk (208); and the connecting screw block (209) is threadedly connected to the outer end of the screw rod (207).

6. A retractor for clinical surgery on the nervous system according to claim 5, characterized in that: The support mechanism (2) further comprises a hydraulic cylinder (210) and an adjusting rod (211); the hydraulic cylinder (210) is fixedly mounted on the lower end of the connecting screw block (209); the adjusting rod (211) is fixedly mounted on the transmission end at the lower end of the hydraulic cylinder (210); and the device body (101) is located at the lower end of the adjusting rod (211).

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