Minimally invasive surgery device for stenosing tenosynovitis

Abstract

A minimally invasive surgery device for stenosing tenosynovitis is provided with a pair of bent forceps used for shearing nodule envelopes and a working sleeve used for forming a working channel for the bent forceps in a surgery area, and the bent forceps can movably penetrate through the interior of the working sleeve. According to the minimally invasive surgery device for stenosing tenosynovitis, a working channel for the bent forceps to enter is established in a surgery area through the working sleeve, then the bent forceps enter the working channel, nodule envelopes can be cut off, and compared with the prior art, the minimally invasive surgery device can greatly reduce surgical incisions, reduce tissue damage and improve the working efficiency. The infection risk is reduced; the recovery time is shortened; and the working channel is established, so that the bending clamp can conveniently and accurately cut off the nodule envelope.

Description

Technical Field

[0001] The utility model relates to the technical field of minimally invasive surgical instruments, in particular to a minimally invasive surgical device for stenosing tenosynovitis. Background Art

[0002] Stenosing tenosynovitis is a common tendon sheath disease, mainly affecting the tendon sheath of the tendons of the fingers or other parts of the body. Aseptic inflammation caused by trauma, friction, chemical stimulation, etc. will cause congestion, swelling, and hyperplasia of the tendon sheath, leading to pain and dysfunction of the tendon during activity. Dysfunction mainly includes flexion and extension of joints. The most common symptoms are nodules and pain in the tendon sheaths of the finger tendons, clicking sounds when flexing and extending the thumb, and even the inability to straighten the thumb after bending it, or snapping sounds during flexion and extension. These are typical symptoms of tenosynovitis. Flexor tendon tenosynovitis is often accompanied by painful nodules, which makes it difficult to flex and extend the fingers, and is called "trigger finger."

[0003] The prior art mainly uses instruments to treat stenosing tenosynovitis, such as an automatic retractor for stenosing tenosynovitis of the flexor tendon disclosed in Chinese Patent Publication No. CN204542250U. Such instruments are used to make a larger incision on the patient so that the doctor can directly observe and perform open surgery. Although this open surgery has been widely used clinically, it has the disadvantages of being highly traumatic, having a long recovery period, a high risk of infection, postoperative complications and limited surgical accuracy.

[0004] Therefore, in view of the shortcomings of the existing technology, it is necessary to provide a minimally invasive surgical device for stenosing tenosynovitis to solve the shortcomings of the existing technology. Utility Model Content

[0005] The utility model aims to avoid the shortcomings of the prior art and provide a minimally invasive surgical device for stenosing tenosynovitis. The minimally invasive surgical device for stenosing tenosynovitis can open a small opening to remove the nodule capsule, reduce tissue damage, and thus reduce the risk of infection.

[0006] The above-mentioned purpose of the utility model is achieved through the following technical measures:

[0007] Provided is a minimally invasive surgical device for stenosing tenosynovitis, comprising a curved forceps for cutting off a tubercle capsule and a working sleeve for forming a working channel for the curved forceps inside an operation area, wherein the curved forceps can movably penetrate the inside of the working sleeve.

[0008] Preferably, the working sleeve is provided with a tube body forming a working guide, a connector and a gripping portion for an operator to hold, one end of the tube body is integrally connected to one end of the connector, the other end of the connector is fixedly connected to the gripping portion, and the bending pliers can movably pass through the interior of the tube body.

[0009] Preferably, the central axis of the tube body is not colinear with the central axis of the gripping portion.

[0010] Preferably, the front and rear ends of the tube body are inclined structures, the tube body area where the front end inclined structure is located is defined as a tube eaves, and the tube body area where the rear end inclined structure is located is defined as an entry platform for the bending forceps to enter, and the entry platform is integrally connected to the gripping portion.

[0011] Preferably, the above-mentioned bending pliers are provided with a pliers body, an upper pliers arm and a pliers handle, one end of the upper pliers arm passes through the front end of the pliers body, the other end of the upper pliers arm is located inside the pliers body and can be movably hinged to the pliers body, the pliers handle is assembled at the rear end of the pliers body, and the upper pliers arm is transmission connected to the pliers handle.

[0012] Preferably, the above-mentioned pliers body is provided with a hollow pliers rod and a transmission member for driving the upper pliers arm to open and close, one end of the upper pliers arm passes through the front end of the pliers rod, the other end of the upper pliers arm is located inside the pliers rod and can be movably hinged to the inner wall of the pliers rod, the pliers handle is assembled at the rear end of the pliers rod, the transmission member is located inside the pliers rod, and the two ends of the transmission member are respectively assembled to the upper pliers arm and the pliers handle.

[0013] The area where the nodule capsule is cut off by the cooperation of the forceps body and the upper forceps arm is defined as a working end. When the upper forceps arm and the working end are in bite, the maximum width of the upper forceps arm and the forceps body as a whole is smaller than the inner diameter of the tube body.

[0014] Preferably, the outer diameter of the clamp rod is smaller than the inner diameter of the tube body.

[0015] Preferably, the length of the clamp rod is greater than the length of the tube body.

[0016] Preferably, the upper forceps arm is provided with a first fixed grasping functional area for grasping the nodule and a first cutting functional area for cutting the nodule capsule, the first fixed grasping functional area is located at the front end edge of the upper forceps arm, and the first cutting functional area is adjacent to the first fixed grasping functional area.

[0017] Preferably, the working end is provided with a second fixed grasping functional area for grasping the nodule and a second cutting functional area for cutting the nodule capsule, the second fixed grasping functional area is located at the front end edge of the working end, and the second cutting functional area is adjacent to the second fixed grasping functional area.

[0018] Preferably, the first cutting functional area is movably abutted against the second cutting functional area, and the first cutting functional area is movably abutted against the second cutting functional area.

[0019] Preferably, the first cutting functional area and the second cutting functional area are sawtooth structures.

[0020] Preferably, the first fixed grasping functional area and the second fixed grasping functional area are planar structures.

[0021] Preferably, the above-mentioned pliers handle is provided with a movable handle and a fixed handle, the fixed handle is integrally connected to the rear end of the pliers rod, the movable handle is hinged to the pliers rod, the movable handle rotates relative to the fixed handle, driving the transmission member to make reciprocating motion in the pliers rod to control the opening and closing of the upper pliers arm and the working end.

[0022] Preferably, the pliers body is further provided with a return spring, and the return spring is located inside the pliers rod, one end of the return spring is fixed to the inner wall surface of the pliers rod, and the other end of the return spring is fixed to the upper pliers arm.

[0023] The utility model is a minimally invasive surgical device for stenosing tenosynovitis, which is provided with curved forceps for cutting off the nodular capsule and a working sleeve for forming a working channel for the curved forceps inside the surgical area, and the curved forceps can movably penetrate the inside of the working sleeve. The minimally invasive surgical device for stenosing tenosynovitis of the utility model establishes a working channel for the curved forceps to enter in the surgical area through the working sleeve, and then the curved forceps enter the working channel to cut off the nodular capsule. Compared with the prior art, the minimally invasive surgical device of the utility model can greatly reduce surgical incisions, reduce tissue damage, reduce infection risks and shorten recovery time; and through the establishment of the working channel, it is convenient for the curved forceps to accurately cut off the nodular capsule. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described with reference to the accompanying drawings, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0025] Figure 1 Schematic diagram of the structure of the working casing.

[0026] Figure 2 for Figure 1 Schematic diagram from another angle.

[0027] Figure 3 It is a schematic diagram of the structure of the curved forceps when biting.

[0028] Figure 4 It is a schematic diagram of the structure of the bending forceps when they are opened.

[0029] Figure 5 It is a schematic diagram of the structure of the working sleeve and the bending pliers when in use.

[0030] exist Figures 1 to 5 Including:

[0031] Working sleeve 100, pipe body 110, entry platform 111, pipe eaves 112, connector 120, gripping part 130,

[0032] Bend Pliers 200,

[0033] The clamp body 210, the clamp rod 211, the working end 212, the second fixed grasping functional area 213, the second cutting functional area 214, the transmission member 215, the return spring 216,

[0034] Upper clamp arm 220, first fixed grabbing functional area 221, first cutting functional area 222,

[0035] Clamp handle 230 , movable handle 231 , fixed handle 232 . DETAILED DESCRIPTION

[0036] The technical solution of the utility model is further described in conjunction with the following embodiments.

[0037] Example 1

[0038] A minimally invasive surgical device for stenosing tenosynovitis is provided with a curved forceps 200 for cutting off the nodule capsule and a working sleeve 100 for forming a working channel for the curved forceps 200 inside the surgical area. The curved forceps 200 can movably penetrate the inside of the working sleeve 100.

[0039] The working sleeve 100 is provided with a tube body 110 forming a working passage, a connecting body 120 and a gripping portion 130 for an operator to hold. One end of the tube body 110 is integrally connected with one end of the connecting body 120, and the other end of the connecting body 120 is fixedly connected with the gripping portion 130. The bending forceps 200 can be movably inserted into the interior of the tube body 110. The central axis of the tube body 110 is not colinear with the central axis of the gripping portion 130. Figure 1 and Figure 2 .

[0040] The front and rear ends of the tube body 110 are inclined structures. The area of ​​the tube body 110 where the front inclined structure is located is defined as a tube eave 112, and the area of ​​the tube body 110 where the rear inclined structure is located is defined as an entry platform 111 for the bending forceps 200 to enter. The entry platform 111 is integrally connected to the gripping portion 130.

[0041] It should be noted that the purpose of the central axis of the tube body 110 of the utility model and the central axis of the gripping portion 130 being not colinear is to prevent the gripping portion 130 from interfering with the curved forceps 200 entering and exiting the working channel. It should also be noted that the direction in which the working sleeve 100 enters the surgical area is defined as the front. The tube eaves 112 can provide space for the opening of the curved forceps 200, and the entry platform 111 can provide a larger entrance for the curved forceps 200 to facilitate operation. It should also be noted that in clinical surgery, the patient is in a supine position, and then the working sleeve 100 is tilted to enter the surgical area, so when in use, the inclined structure opening at the rear end is basically parallel to the horizontal plane.

[0042] The bending pliers 200 are provided with a pliers body 210, an upper pliers arm 220 and a pliers handle 230. One end of the upper pliers arm 220 passes through the front end of the pliers body 210, and the other end of the upper pliers arm 220 is located inside the pliers body 210 and can be movably hinged to the pliers body 210. The pliers handle 230 is assembled at the rear end of the pliers body 210, and the upper pliers arm 220 is transmission-connected to the pliers handle 230.

[0043] The pliers body 210 is provided with a hollow pliers rod 211, a transmission member 215 and a return spring 216 for driving the upper pliers arm 220 to open and close. One end of the upper pliers arm 220 passes through the front end of the pliers rod 211, and the other end of the upper pliers arm 220 is located inside the pliers rod 211 and can be movably hinged to the inner wall of the pliers rod 211. The pliers handle 230 is assembled at the rear end of the pliers rod 211. The transmission member 215 is located inside the pliers rod 211, and the two ends of the transmission member 215 are respectively assembled to the upper pliers arm 220 and the pliers handle 230. The return spring 216 is located inside the pliers rod 211, and one end of the return spring 216 is fixed to the inner wall surface of the pliers rod 211, and the other end of the return spring 216 is fixed to the upper pliers arm 220.

[0044] It should be noted that the transmission member 215 can be a transmission rod or a steel wire. The function of the reset spring 216 is to reset the upper clamp arm 220 after cutting.

[0045] The clamp handle 230 is provided with a movable handle 231 and a fixed handle 232. The fixed handle 232 is integrally connected to the rear end of the clamp rod 211. The movable handle 231 is hinged to the clamp rod 211. The movable handle 231 rotates relative to the fixed handle 232, driving the transmission member 215 to reciprocate in the clamp rod 211 to control the opening and closing of the upper clamp arm 220 and the working end 212. Figure 3 and Figure 4 .

[0046] The area where the nodule capsule is cut off by the cooperation of the forceps body 210 and the upper forceps arm 220 is defined as the working end 212; when the upper forceps arm 220 and the working end 212 are in engagement, the maximum width of the upper forceps arm 220 and the forceps body 210 as a whole is smaller than the inner diameter of the tube body 110; the outer diameter of the forceps rod 211 is smaller than the inner diameter of the tube body 110; and the length of the forceps rod 211 is greater than the length of the tube body 110.

[0047] It should be noted that, through the size settings of the forceps body 210, the upper forceps arm 220 and the forceps rod 211, the curved forceps 200 can smoothly enter and exit the tube body 110 and directly reach the surgical area.

[0048] The upper forceps arm 220 is provided with a first fixed grasping functional area 221 for grasping nodules and a first cutting functional area 222 for cutting nodule capsules. The first fixed grasping functional area 221 is located at the front end edge of the upper forceps arm 220, and the first cutting functional area 222 is adjacent to the first fixed grasping functional area 221; the working end 212 is provided with a second fixed grasping functional area 213 for grasping nodules and a second cutting functional area 214 for cutting nodule capsules. The second fixed grasping functional area 213 is located at the front end edge of the working end 212, and the second cutting functional area 214 is adjacent to the second fixed grasping functional area 213; the first cutting functional area 222 is movably abutted against the second cutting functional area 214, and the first cutting functional area 222 is movably abutted against the second cutting functional area 214.

[0049] The first cutting functional area 222 and the second cutting functional area 214 are sawtooth structures; the first fixed grabbing functional area 221 and the second fixed grabbing functional area 213 are planar structures.

[0050] It should be noted that the first fixed grasping functional area 221 and the second fixed grasping functional area 213 of the utility model are blunt planar structures, and their main function is to fix and grasp the cyst, while the cutting functional area and the first fixed grasping functional area 221 are serrated structures for cutting or incising, so that the contents of the cyst can flow out eventually, without the need to remove the contents.

[0051] The method of using the utility model is as follows: step 1, palpate the painful nodule on the palm side, cut 3mm of skin on the surface of the nodule, and then separate the soft tissue to the tendon, then hold the gripping part 130 of the handheld working sleeve 100, and then put the proximal end of the tube body 110 of the nodule obliquely and then slide it toward the distal end, until the tube flange 112 of the tube body 110 abuts against the nodule, the working channel is established.

[0052] Step 2: close the upper clamp arm 220 and place the curved clamp 200 into the entry platform 111 of the tube body 110, then open the upper clamp arm 220 so that the nodule is placed between the upper clamp arm 220 and the working end 212, and then bite the upper clamp arm 220. Figure 5, the cyst is fixedly grasped by the first fixed grasping functional area 221 and the second fixed grasping functional area 213, and then the upper forceps arm 220 is continuously engaged, and the nodule is removed by the first cutting functional area 222 and the second cutting functional area 214. Because the nodule is a cyst, only the nodule capsule needs to be cut off without removing the contents. When the tube flange 112 of the tube body 110 continues to slide forward on the tendon surface without resistance, the nodule has been removed.

[0053] Step 3: Pull out the curved forceps 200 and the working cannula 100, press the wound for 3 minutes, cover it with alcohol gauze and bandage it without suturing.

[0054] The minimally invasive surgical device for stenosing tenosynovitis establishes a working channel in the surgical area through the working sleeve 100 for the curved forceps 200 to enter, and then the curved forceps 200 enter the working channel to cut off the nodule capsule. Compared with the prior art, the minimally invasive surgical device of the utility model can greatly reduce surgical incisions, reduce tissue damage, reduce infection risks and shorten recovery time; and the establishment of the working channel makes it easier for the curved forceps 200 to accurately cut off the nodule capsule.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the protection scope of the utility model. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A minimally invasive surgical device for stenosing tenosynovitis, characterized in that: A curved forceps for cutting off the nodule capsule and a working sleeve for forming a working channel for the curved forceps inside the surgical area are provided. The curved forceps can movably penetrate the interior of the working sleeve.

2. The minimally invasive surgical device for stenosing tenosynovitis according to claim 1, characterized in that: The working sleeve is provided with a tube body forming a working passage, a connector and a gripping portion for an operator to hold, one end of the tube body is integrally connected to one end of the connector, the other end of the connector is fixedly connected to the gripping portion, and the bending forceps can movably pass through the interior of the tube body.

3. The minimally invasive surgical device for stenosing tenosynovitis according to claim 2, characterized in that: The central axis of the tube body is not colinear with the central axis of the gripping portion; The front end and rear end of the tube body are inclined structures. The tube body area where the front end inclined structure is located is defined as a tube eaves, and the tube body area where the rear end inclined structure is located is defined as an entry platform for the bending forceps to enter. The entry platform is integrally connected to the gripping part.

4. The minimally invasive surgical device for stenosing tenosynovitis according to claim 3, characterized in that: The bending pliers are provided with a pliers body, an upper pliers arm and a pliers handle. One end of the upper pliers arm passes through the front end of the pliers body, the other end of the upper pliers arm is located inside the pliers body and can be movably hinged to the pliers body, the pliers handle is assembled at the rear end of the pliers body, and the upper pliers arm is transmission connected to the pliers handle.

5. The minimally invasive surgical device for stenosing tenosynovitis according to claim 4, characterized in that: The pliers body is provided with a hollow pliers rod and a transmission member for driving the upper pliers arm to open and close. One end of the upper pliers arm passes through the front end of the pliers rod, and the other end of the upper pliers arm is located inside the pliers rod and can be movably hinged to the inner wall of the pliers rod. The pliers handle is assembled at the rear end of the pliers rod, the transmission member is located inside the pliers rod, and the two ends of the transmission member are respectively assembled to the upper pliers arm and the pliers handle.

6. The minimally invasive surgical device for stenosing tenosynovitis according to claim 5, characterized in that: The area where the nodule capsule is cut off by the cooperation of the forceps body and the upper forceps arm is defined as the working end; when the upper forceps arm and the working end are in bite, the maximum width of the upper forceps arm and the forceps body as a whole is smaller than the inner diameter of the tube body; The outer diameter of the clamp rod is smaller than the inner diameter of the tube body; The length of the clamp rod is greater than the length of the tube body.

7. The minimally invasive surgical device for stenosing tenosynovitis according to claim 6, characterized in that: The upper forceps arm is provided with a first fixed grasping functional area for grasping the nodule and a first cutting functional area for cutting the nodule capsule, the first fixed grasping functional area is located at the front end edge of the upper forceps arm, and the first cutting functional area is adjacent to the first fixed grasping functional area; The working end is provided with a second fixed grasping functional area for grasping the nodule and a second cutting functional area for cutting the nodule capsule, the second fixed grasping functional area is located at the front end edge of the working end, and the second cutting functional area is adjacent to the second fixed grasping functional area; The first cutting functional area is movably abutted against the second cutting functional area.

8. The minimally invasive surgical device for stenosing tenosynovitis according to claim 7, characterized in that: The first cutting functional area and the second cutting functional area are sawtooth structures; The first fixed grasping functional area and the second fixed grasping functional area are planar structures.

9. The minimally invasive surgical device for stenosing tenosynovitis according to claim 6, characterized in that: The pliers handle is provided with a movable handle and a fixed handle, the fixed handle is integrally connected to the rear end of the pliers rod, the movable handle is hinged to the pliers rod, the movable handle rotates relative to the fixed handle, driving the transmission member to reciprocate in the pliers rod to control the opening and closing of the upper pliers arm and the working end.

10. The minimally invasive surgical device for stenosing tenosynovitis according to claim 6, characterized in that: The pliers body is also provided with a return spring, which is located inside the pliers rod, one end of the return spring is fixed to the inner wall surface of the pliers rod, and the other end of the return spring is fixed to the upper pliers arm.

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