Operation stripping device

Abstract

The utility model relates to a surgical stripping device, which belongs to the technical field of medical instruments and comprises a stripper (1), the stripper (1) consists of a stripping part (11) and a rod body (12) connected with the stripping part (11), the stripping part (11) is sleeved with an elastically separable distraction device (2), the distraction device (2) comprises a positioning sleeve (21), the positioning sleeve (21) is provided with a bag body (22) capable of expanding towards the outer side, the bag body (22) is communicated with a catheter (23), and the catheter (23) is communicated with the stripping part (11). And a one-way valve (24) is arranged on the guide pipe (23). The distraction device capable of being elastically separated is connected to the stripping part of the stripper in a sleeved mode, tissue separation is achieved through the bag body capable of expanding towards the outer side, the contact area with the tissue to be separated is increased, meanwhile, the bag body has certain elasticity, the tissue can be protected against damage while the tissue is separated, the operation risk is reduced, and the operation efficiency is improved. In general, the device can improve the surgical stripping efficiency and quality.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a surgical stripping device. Background Art

[0002] The dissector is a commonly used blunt separation instrument in surgical operations. During surgery, a rounded dissector head is usually used to perform blunt separation along the tissue gap, which is conducive to operating in a narrow space and reduces intraoperative bleeding and damage to surrounding tissues. It is widely used in clinical practice.

[0003] However, the existing strippers are simple in structure and are usually made of a thin, flat metal stick. Their main function is to separate the adhesions between nerve tissue or dura mater and ligaments and soft tissues, and to pull apart the nerves or dura mater. However, when the nerve stripper is in use, it is only separated by a rigid stripper head. Due to its small contact area, it is easy to damage the stripped tissue, especially to cause accidental injury to important blood vessels and nerves, which invisibly increases the risk of surgery.

[0004] Secondly, the existing dissipators are only suitable for open surgery within the visible range, and their scope of application is relatively limited. They cannot be used in deep, invisible and anatomically complex surgical areas, and cannot provide a clear surgical field of view, which limits the application of dissipators.

[0005] In addition, if there is a lot of local blood and cerebrospinal fluid exudation, assistants are often required to use suction devices to suck out the liquid repeatedly to facilitate exposure. Because the surgical operation area is small, the surgical instruments and the suction device head affect each other in the surgical area, which is inconvenient for surgical operations, resulting in prolonged operation time and increased surgical risks, especially for doctors with less clinical experience. Utility Model Content

[0006] In order to solve the deficiencies of the prior art, the utility model provides a surgical stripping device.

[0007] It adopts the following technical solutions:

[0008] A surgical stripping device comprises a stripper, which is composed of a stripping part and a connected rod. The stripping part is sleeved with an elastically separable expansion device, and the expansion device comprises a positioning sleeve, on which a sac that can expand outward is provided, the sac is connected to a catheter, and a one-way valve is provided on the catheter.

[0009] Furthermore, the bladder body includes an expansion tube, which is sleeved on the positioning sleeve, and both ends of the expansion tube are sealed and fixedly connected to the outer peripheral wall of the positioning sleeve, and the inner side wall of the expansion tube and the outer side wall of the positioning sleeve form a closed cavity.

[0010] Furthermore, a conducting hole is provided in the wall of the positioning sleeve, one end of the conducting hole is connected to the catheter, and the other end of the conducting hole is connected to the cavity.

[0011] Furthermore, a first channel leading to the stripping portion is provided on the rod body.

[0012] Furthermore, a second channel leading to the stripping portion is provided on the rod body.

[0013] Furthermore, one end of the second channel is connected to a plurality of suction holes, which are arranged on the inner side of the stripping portion, and the other end of the second channel is connected to an interface tube, which is arranged on the rod body.

[0014] Furthermore, the catheter is also connected to an indicator bag, and the one-way valve is located at the tail of the indicator bag.

[0015] Compared with the prior art, the utility model has the following beneficial effects: by sleeve-fitting an elastically detachable stretching device on the stripping part of the stripper, tissue separation is achieved through a capsule that can expand outwards, thereby increasing the contact area with the tissue to be separated; meanwhile, the capsule itself has a certain elasticity, thereby protecting the tissue from damage while separating it, thereby reducing the risk of surgery; by providing a first channel into which a endoscope can be inserted, the stripping device can be applied to surgical areas that cannot be directly seen by the naked eye, thereby increasing the application range of the device; by providing a second channel for absorbing accumulated fluid, instead of the suction head, occupation of surgical operation space is avoided, while the adverse effect on the endoscope field of view can be further reduced; in general, the utility model can improve the efficiency and quality of surgical stripping. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a surgical stripping device according to an embodiment of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the propping device in the embodiment of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the stripper in the embodiment of the utility model;

[0019] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure of BB.

[0020] Explanation of the reference numerals: 1. peeling member; 11. peeling portion; 12. rod body; 13. first channel; 14. second channel; 141. suction hole; 142. interface tube; 2. expansion device; 21. positioning sleeve; 211. conducting hole; 22. bladder body; 221. expansion tube; 222. cavity; 23. catheter; 24. one-way valve; 25. indicator bladder. DETAILED DESCRIPTION

[0021] In order to make the present invention more clearly understood, a surgical stripping device of the present invention is further described below in conjunction with the accompanying drawings. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] like Figure 1 , Figure 2 As shown, a surgical stripping device includes a stripper 1, which is made of a rod with sufficient rigidity and hardness, for example, made of medical stainless steel or high-quality engineering plastics. It includes a stripping part 11 and an integrally connected rod body 12. The stripping part 11 has an arc-shaped spoon-shaped blunt blade head, which is used for separating tissues such as human nerves, dura mater, ligaments and soft tissues; the rod body 12 can be bent according to the specific stripping tissue site to facilitate the holding and use of the stripper, while avoiding interference when using the endoscope. In this embodiment, the rod body 12 has a bending shape with an obtuse angle, the tail of the rod body 12 is used for holding, and the front part is connected to the stripping part 11. Through this bending shape, it is convenient to hold the stripper and insert it from the oral cavity to the stripping site of the throat-related tissue to facilitate the stripping operation. Of course, this device can also be used for stripping of kidney tissue in urology, etc. In addition, the rod body 12 can also be a right-angle bending shape, multi-angle bending and other shapes.

[0023] The stripping part 11 is sleeved with an elastically separable stretching device 2, and the stretching device 2 includes a positioning sleeve 21. The positioning sleeve 21 is a transparent medical silicone round tube, and the tube hole size is smaller than the maximum width direction size of the stripping part 11. When the stripping part 11 is inserted into the positioning sleeve 21, the elastic action of the positioning sleeve 21 wraps the stripping part 11 to form a certain anti-stripping ability, and the front end of the stripping part 11 can extend out of the positioning sleeve 21.

[0024] A sac 22 that can expand outward is provided on the positioning sleeve 21, and the sac 22 is connected to a soft catheter 23, and a one-way valve 24 is provided at the tail end of the catheter 23. Specifically, the sac 22 includes an expansion tube 221, which is an open structure at both ends and is sleeved on the outer peripheral surface of the positioning sleeve 21. The expansion tube 221 has good elasticity and can undergo large elastic deformation. Here, the expansion tube 221 is made of medical soft elastic silicone. The two ports of the expansion tube 221 are respectively sealed and fixedly connected to the outer peripheral surface corresponding to the positioning sleeve 21, preferably by bonding. The inner peripheral side wall of the expansion tube 221 and the outer peripheral side wall of the positioning sleeve 21 form a closed cavity 222, and the volume of the cavity 222 can be changed by filling gas or liquid through the catheter 23, so that the sac 22 expands. Due to the support of the stripping part 11 in the positioning sleeve 21, the expansion direction of the sac 22 is mainly toward the outside. Of course, in order to further achieve the outward expansion of the bladder 22, the wall thickness of the expansion tube 221 is thinner than the wall thickness of the positioning sleeve 21. When pressure is generated in the cavity 222, the thin-walled expansion tube 221 generates a smaller restraining force, and the bladder 22 expands outward preferentially.

[0025] A conducting hole 211 is provided in the wall of the positioning sleeve 21. The conducting hole 211 is arranged along the axis of the positioning sleeve 21. One end of the conducting hole 211 is connected to the catheter 23 and the other end is connected to the cavity 222. The catheter 23 is also connected to an indicator capsule 25, which is close to the one-way valve 24 at the tail. A syringe can be used to inject liquid (physiological saline) into the cavity 222 from the one-way valve 24, and visual observation can be performed through the indicator capsule 25. Especially when the capsule 22 cannot be directly observed during surgical dissection, the liquid content of the indicator capsule 25 can be used to determine whether the capsule 22 is expanded. When the valve needle of the one-way valve 24 is pressed, the liquid in the capsule is discharged, and the capsule 22 returns to its original state under its own elasticity.

[0026] like Figure 3 , Figure 4 As shown, the rod body 12 is provided with a first channel 13 and a second channel 14, respectively. The first channel 13 is located parallel to the upper side of the second channel 14, and their ports on the same side are both connected to the inner arc surface of the stripping part 11. The other side port of the first channel 13 is located outside the bend of the rod body 12. The other end of the second channel 14 is connected to the interface pipe 142, which can be connected to the suction device by setting a threaded interface or by plug-in matching. The interface pipe 142 is arranged on the surface of the rod body 12 in an original tubular shape, and its axis is parallel to the handle part after the rod body 12 is bent. Considering that the suction port of the second channel 14 has a risk of clogging, a plurality of suction holes 141 are provided on the inner arc surface of the stripping part 11. In this embodiment, there are three suction holes 141, all of which are connected to the second channel 14.

[0027] The first channel 13 is used to insert the endoscope, and its aperture is larger than the aperture of the second channel 14 used for negative pressure suction. The second channel 14 is used to suck the effusion at the peeling position through the suction device, which reduces the volume of the device as a whole to increase the surgical field range of the endoscope.

[0028] When the device is used, the tissue is first preliminarily separated by the stripping part, and then the expansion device 2 is put on the stripping part 11 of the stripper 1, and the endoscope is inserted into the first channel 13. Then, the whole device is inserted into the preliminarily stripped tissue part. At the same time, physiological saline can be injected into the capsule 22 through the one-way valve 24 through a syringe or other instrument, so that the capsule 22 expands circumferentially, thereby achieving tissue separation.

[0029] In this process, since the capsule 22 is filled with liquid or gas to achieve synchronous expansion of the circumference of the capsule 22, it is in full elastic contact with the surrounding tissue, which better protects the separated tissue. In addition, compared with the single-sided peeling operation using the peeling sub, the peeling surface of the device is the entire circumference, and the separation operation of the circumference is carried out synchronously, which can achieve a better separation effect. In addition, the first channel is set for endoscope introduction to provide a clear surgical field of view. The second channel 14 is set to connect the suction device to absorb the effusion and further reduce the impact on the endoscope field of view. At the same time, the position setting of the first and second channels also simplifies the structure of the device to avoid occupying the surgical operation space. Finally, the expansion device 2 can be separated from the peeling sub, which is convenient for cleaning the tools. In general, the device can improve the efficiency and quality of surgical peeling.

[0030] The above embodiments of the utility model are merely examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, these obvious changes or modifications derived from the essential spirit of the utility model still belong to the protection scope of the utility model.

Claims

1. A surgical stripping device, comprising a stripper (1), the stripper (1) comprising a stripping portion (11) and a connected rod (12), characterized in that: The stripping portion (11) is sleeved with an elastically separable expansion device (2), the expansion device (2) comprising a positioning sleeve (21), the positioning sleeve (21) being provided with a sac (22) that can expand outwards, the sac (22) being in communication with a catheter (23), and the catheter (23) being provided with a one-way valve (24).

2. A surgical stripping device according to claim 1, characterized in that: The bladder (22) comprises an expansion tube (221), the expansion tube (221) being sleeved on the positioning sleeve (21), the two ends of the expansion tube (221) being sealed and fixedly connected to the outer wall of the peripheral surface of the positioning sleeve (21), and the inner wall of the expansion tube (221) and the outer wall of the positioning sleeve (21) forming a closed cavity (222).

3. A surgical stripping device according to claim 2, characterized in that: A conducting hole (211) is provided in the wall of the positioning sleeve (21), one end of the conducting hole (211) is in communication with the catheter (23), and the other end of the conducting hole (211) is in communication with the cavity (222).

4. A surgical stripping device according to claim 3, characterized in that: The rod body (12) is provided with a first channel (13) leading to the stripping portion (11).

5. A surgical stripping device according to claim 4, characterized in that: The rod body (12) is provided with a second channel (14) leading to the stripping portion (11).

6. A surgical stripping device according to claim 5, characterized in that: One end of the second channel (14) is connected to a plurality of suction holes (141), the suction holes (141) being arranged on the inner side of the stripping portion (11), and the other end of the second channel (14) is connected to a mouthpiece (142), the mouthpiece (142) being arranged on the rod body (12).

7. A surgical stripping device according to claim 1 or 6, characterized in that: The catheter (23) is also connected to an indicator bag (25), and the one-way valve (24) is located at the tail of the indicator bag (25).

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