Fascia broadening clamping and distraction implanter

Abstract

The invention relates to the technical field of medical instruments, in particular to a fascia clamping and distraction implanter which is characterized in that fascia is placed between clamping mechanisms, a fascia graft passes through a subacromion gap, a supraspinatus muscle belly and a subcutaneous part, then the clamping mechanisms are moved downwards, the fascia graft is clamped by the clamping mechanisms, and then the fascia graft is distraction by the clamping mechanisms. The clamping mechanism is driven by the equal-width opening mechanism to move oppositely, equal-width opening of the fascia graft in target muscles is achieved, then the fascia graft is taken down from the clamping mechanism, one end of the fascia graft is pulled out of the subcutaneous part, and the whole implanting process of the fascia graft is completed. The fascia graft can be smoothly implanted in the supraspinatus abdominal muscle and expanded in an equal-width mode, so that the contact area of the fascia graft and the supraspinatus is increased, healing is promoted, and the risks that in the prior art, the graft is used for rebuilding and treating huge rotator cuff tearing, suture management is complex in the graft implantation process, and complications are high are solved.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a fascia lata clamping and spreading implanter. Background Art

[0002] Rotator cuff tear (RCT) is the most common non-traumatic upper limb disease in the elderly population over 50 years old. The prevalence of rotator cuff tear ranges from 22.1% to 34%, and the incidence and tear area of ​​RCT increase with age. Massive rotator cuff tears (MRCT) account for about 20% of all rotator cuff tears. Regarding the definition of MRCT, Cofield et al. describe it as a tear greater than 5 cm in the anterior-posterior or medial-lateral direction, and Gerber et al. describe it as a tear involving two or more rotator cuff tendons. The 2020 American Shoulder and Elbow Surgery Consensus defines MRCT as: tendon retraction to the glenoid rim and / or tear with 67% greater trochanter exposure. After MRCT occurs, the balance of the shoulder joint force couple is broken, resulting in shoulder joint dysfunction and increased difficulty in repair. The treatment of massive rotator cuff tears is a difficult problem faced by shoulder surgeons.

[0003] Treatments for giant rotator cuff tears include simple arthroscopic cleaning, partial rotator cuff repair, superior capsule reconstruction (SCR), subacromial balloon placement, tendon transfer, and reverse shoulder prosthesis replacement. Despite the variety of treatment options, none of them has achieved satisfactory postoperative results. We previously proposed a surgical method for rotator cuff reconstruction using fascia lata, where one end of the fascia lata is fixed to the greater tuberosity of the humerus to reconstruct the rotator cuff attachment point, and one end is fixed to the scapular spine through the supraspinatus muscle to allow the fascia lata to heal with the supraspinatus muscle, achieving good surgical results. For this purpose, a fascia lata clamping and distraction implant was designed. Summary of the invention

[0004] The purpose of the present invention is to provide a fascia lata clamping and spreading implanter, which solves the technical problems of the existing use of grafts for reconstruction to treat giant rotator cuff tears, complex suture management during graft implantation, and high risk of complications.

[0005] To achieve the above-mentioned objectives, the present invention provides a fascia lata clamping and spreading implanter, comprising a fixed disk, and also comprising an equidistant spreading mechanism, a movable plate, a first telescopic rod, a movable block, a clamping mechanism and a pull rope. The equidistant spreading mechanism passes through the fixed disk and extends out of the fixed disk, and is used to equidistantly move the movable plate. The movable plate is slidably connected to the fixed disk. There are two movable plates, which are respectively located on the left and right sides of the fixed disk. Two first telescopic rods are arranged on each movable plate, and the upper ends of the two first telescopic rods above each movable plate are jointly provided with the movable block. The clamping mechanism is arranged on each movable block, and the clamping mechanism is used to clamp the fascia lata. The pull rope is arranged under each movable block, and the pull rope passes through the movable plate and the fixed disk respectively.

[0006] Wherein, the equidistant spreading mechanism includes a first spreading member and a second spreading member, the first spreading member is used for laterally moving the movable plate on the left side, and the second spreading member is used for laterally moving the movable plate on the right side.

[0007] The first opening member includes a first opening plate and a first handle. The first opening plate is movably arranged below the movable plate on the left side and passes through the fixed plate. The first handle is arranged outside the first opening plate.

[0008] The second support member includes a second support plate and a second handle. The second support plate is movably arranged below the movable plate on the right side and passes through the fixed plate. The second handle is arranged outside the second support plate and on a side away from the first support plate.

[0009] Wherein, the clamping mechanism includes a first clamping rod and a second clamping rod, and the first clamping rod and the second clamping rod are respectively arranged on the left and right sides of the moving block. Through the coordinated use of the first clamping rod and the second clamping rod, different positions of the fascia lata are clamped.

[0010] The first clamping rod includes a first movable block and a first clamping plate. The first movable block is slidably arranged on the left side of the moving block. There are two first clamping plates, which are respectively arranged on the front and rear sides of the first movable block.

[0011] Among them, the second clamping rod includes a second movable block and a second clamping plate, the second movable block is slidably set on the right side of the movable block, the number of the second clamping plates is two, and they are respectively set on the front and rear sides of the second movable block, and the second clamping plate is slidably set in the first clamping plate at the corresponding position.

[0012] The fascia lata clamping and spreading implanter of the present invention is provided by placing the fascia lata between the clamping mechanisms, allowing the fascia lata to pass through the subacromial space, through the supraspinatus muscle, and reach the subcutaneous tissue, and then pulling the pull rope downward to drive the moving block to move downward, thereby driving the clamping mechanism to move downward, so that the clamping mechanism can clamp the fascia lata. After clamping, the equal-width spreading mechanism drives the moving plate to move back and forth in the fixed disk, thereby driving the moving block to move relative or opposite to each other in the fixed disk, and then driving the clamping mechanism to move relative or opposite to each other in the fixed disk. The device moves to realize equal-width expansion of the fascia lata. After the fascia lata is completely expanded, the fascia lata is removed from the clamping mechanism, one end is pulled out of the subcutaneous tissue, and then the device is taken out, leaving the fascia lata in the patient's body, completing the entire implantation process of the fascia lata. The fascia lata is clamped by the clamping mechanism, and the equal-width expansion mechanism drives the two clamping mechanisms to expand the fascia lata equally in the supraspinatus muscle, thereby increasing the contact area between the fascia lata and the supraspinatus muscle, thereby promoting healing, and solving the technical problem that the existing treatment methods for rotator cuff tears cannot achieve satisfactory postoperative efficacy after treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0014] Figure 1 It is a schematic diagram of the overall structure of the fascia lata clamping and spreading implanter according to the first embodiment of the present invention.

[0015] Figure 2 It is a schematic diagram of the connection between the first support plate and the first handle of the first embodiment of the present invention.

[0016] Figure 3 The first embodiment of the present invention Figure 2 Enlarged view of point A.

[0017] Figure 4 FIG. 1 is a schematic cross-sectional view along a fixed plate according to a first embodiment of the present invention.

[0018] Figure 5 It is a cross-sectional schematic diagram along the first telescopic rod of the first embodiment of the present invention.

[0019] In the figure: 101-fixed plate, 102-movable plate, 103-first telescopic rod, 104-movable block, 105-pull rope, 106-first opening plate, 107-first handle, 108-second opening plate, 109-second handle, 110-first movable block, 111-first clamping plate, 112-second movable block, 113-second clamping plate, 114-slide groove, 115-protrusion, 116-connecting pin, 117-first fixed block, 118-second fixed block, 119-anti-slip teeth, 120-second telescopic rod. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0021] First embodiment:

[0022] See also Figures 1 to 5 The present invention provides a fascia lata clamping and distracting implanter, comprising a fixed plate 101, an equidistant distracting mechanism, a movable plate 102, a first telescopic rod 103, a movable block 104, a clamping mechanism and a pull rope 105, the equidistant distracting mechanism comprising a first distracting member and a second distracting member, the first distracting member comprising a first distracting plate 106 and a first handle 107, the second distracting member comprising a second distracting plate 108 and a second handle 109, the clamping mechanism comprising a first clamping rod and a second clamping rod, the first clamping rod comprising a first movable block 110 and a first clamping plate 111, the second clamping rod comprising a second movable block 112 and a second clamping plate 113.

[0023] In this embodiment, the fascia lata is placed between the clamping mechanisms, and the fascia lata is allowed to pass through the subacromial space, through the supraspinatus muscle, and reach the subcutaneous tissue, and then the pull rope 105 is pulled downward to drive the moving block 104 to move downward, thereby driving the clamping mechanism to move downward, so that the clamping mechanism can clamp the fascia lata. After clamping, the equal-width spreading mechanism is used to drive the moving plate 102 to move relative to or away from the fixed plate 101, thereby driving the moving block 104 to move relative to or away from the fixed plate 101, thereby driving the clamping mechanism to move relative to or away from the fixed plate 101. 01 move back to back inward to achieve equal-width expansion of the fascia lata. After the fascia lata is fully expanded, the fascia lata is removed from the clamping mechanism, one end is pulled out of the subcutaneous tissue, and then the device is taken out, leaving the fascia lata in the patient's body to complete the entire implantation process of the fascia lata. The fascia lata is clamped by the clamping mechanism, and the equal-width expansion mechanism drives the two clamping mechanisms to expand the fascia lata to an equal width in the supraspinatus muscle, thereby increasing the contact area between the fascia lata and the supraspinatus muscle, thereby promoting healing, and solving the technical problem that the existing treatment methods for rotator cuff tears cannot achieve satisfactory postoperative effects after treatment.

[0024] The equidistant spreading mechanism penetrates the fixed disk 101 and extends out of the fixed disk 101, and is used to equidistantly move the movable plate 102. The movable plate 102 is slidably connected to the fixed disk 101. There are two movable plates 102, which are respectively located on the left and right sides of the fixed disk 101. Each movable plate 102 is provided with two first telescopic rods 103. The upper ends of the two first telescopic rods 103 above each movable plate 102 are jointly provided with the movable block 104. Each movable block 104 is provided with the clamping mechanism, which is used to clamp the fascia lata. The pull rope 105 is provided under each movable block 104. 05 respectively penetrates the movable plate 102 and the fixed plate 101, the fixed plate 101 has a slide groove 114, the movable plate 102 has a protrusion 115, the protrusion 115 of the movable plate 102 slides horizontally in the slide groove 114 of the fixed plate 101 to limit the moving direction of the movable plate 102, so that the two movable plates 102 can only move horizontally relative to or opposite to each other in the fixed plate 101, and the first telescopic rod 103 is arranged between the movable plate 102 and the movable block 104, so that the first telescopic rod 103 can support the movable block 104, and when the pull rope 105 is pulled downward, the movable block 104 can move downward above the movable plate 102.

[0025] Secondly, the first propping member is used to laterally move the movable plate 102 on the left side, and the second propping member is used to laterally move the movable plate 102 on the right side.

[0026] Again, the first opening plate 106 is movably arranged under the movable plate 102 on the left and passes through the fixed plate 101, the first handle 107 is arranged outside the first opening plate 106, the second opening plate 108 is movably arranged under the movable plate 102 on the right and passes through the fixed plate 101, the second handle 109 is arranged outside the second opening plate 108 on a side away from the first opening plate 106, the first opening plate 106 and the second opening plate 108 are connected by a connecting pin 116 to achieve equal width expansion of the first opening plate 106 and the second opening plate 108.

[0027] At the same time, a first fixing block 117 and a second fixing block 118 are respectively provided on the side where the first support plate 106 and the second support plate 108 are close to each other, and the first fixing block 117 and the second fixing block 118 both have anti-slip teeth 119, and the anti-slip teeth 119 of the first fixing block 117 and the anti-slip teeth 119 of the second fixing block 118 are staggered, so that the first fixing block 117 and the second fixing block 118 can be limited, and then the distance between the first support plate 106 and the second support plate 108 can be limited.

[0028] In addition, the first clamping rod and the second clamping rod are respectively arranged on the left and right sides of the moving block 104 , and different positions of the fascia lata are clamped by the cooperation of the first clamping rod and the second clamping rod.

[0029] In addition, the first movable block 110 is slidably arranged on the left side of the movable block 104, the number of the first clamping plates 111 is two, and they are respectively arranged on the front and rear sides of the first movable block 110, the second movable block 112 is slidably arranged on the right side of the movable block 104, the number of the second clamping plates 113 is two, and they are respectively arranged on the front and rear sides of the second movable block 112, and the second clamping plates 113 are slidably arranged in the first clamping plates 111 at the corresponding positions, the lengths of the first clamping plates 111 and the second clamping plates 113 are about 15-20 cm, the first clamping plates 111 and the second clamping plates 113 have appropriate elasticity and hardness, and the two relative The first clamping plate 111 or the second clamping plate 113 can both form a V-shaped clamp to firmly clamp the edge of the fascia lata. The fixed disk 101 has a slot, and the first clamping plate 111 and the second clamping plate 113 both extend from the slot of the fixed disk 101 to the outside of the fixed disk 101, and the first clamping plate 111 and the second clamping plate 113 can move up and down in the fixed disk 101. When the first clamping plate 111 and the second clamping plate 113 can move up and down in the fixed disk 101, the two relatively arranged first clamping plates 111 and the two relatively arranged second clamping plates 113 will open or tighten to clamp or release the fascia lata.

[0030] Finally, a second telescopic rod 120 is disposed between the first movable block 110 and the second movable block 112 to adjust the distance between the first movable block 110 and the second movable block 112 .

[0031] When using a fascia lata clamping and spreading implanter of the present embodiment, the fascia lata is placed between the two first clamping plates 111, and the fascia lata is passed through the subacromial space, through the supraspinatus muscle, and reaches the subcutaneous tissue, and then the pull rope 105 is pulled downward to drive the moving block 104 to move downward in the fixed disk 101, thereby driving the first movable block 110 and the second movable block 112 to move downward in the fixed disk 101, and then driving the first clamping plate 111 and the second clamping plate 113 to move downward in the fixed disk 101, and the first clamping plate 111 and the second clamping plate 113 are moved downward in the fixed disk 101, so that the two relatively arranged first clamping plates 111 and the two relatively arranged second clamping plates 113 are moved downward in the fixed disk 101. The clamping plate 113 will gradually tighten to clamp the fascia lata. During the clamping process, the first movable block 110 and the second movable block 112 are moved relative to or away from each other, driving the second telescopic rod 120 to extend and retract, and the second clamping plate 113 can slide laterally in the first clamping plate 111, so that the distance between the first clamping plate 111 and the second clamping plate 113 can be adjusted to clamp different positions of the fascia lata. Since the downward movement degree of the pull rope 105 can be adjusted, the downward movement degree of the movable block 104 can be adjusted, so that the downward movement degree of the first clamping plate 111 and the second clamping plate 113 can be adjusted, thereby clamping fascia lata of different thicknesses.

[0032] After clamping the fascia lata, the first handle 107 and the second handle 109 are held by hand, and the first handle 107 and the second handle 109 are opened to the same width, so that the first opening plate 106 and the second opening plate 108 can be opened to the same width, so that the movable plates 102 on the left and right sides can move back to each other in the fixed plate 101. At this time, the protrusion 115 of the movable plate 102 slides horizontally in the slide groove 114 of the fixed plate 101 to limit the moving direction of the movable plate 102, so that the two movable plates 102 can move in opposite directions. 2 can only move backwards in the fixed disk 101 laterally, and the two movable plates 102 on the left and right sides can move backwards in the fixed disk 101, so that the two movable blocks 104 connected to the two movable plates 102 can move backwards in the fixed disk 101, so that the first clamping plates 111 and the second clamping plates 113 on the left and right sides can move backwards in the fixed disk 101, and then the fascia lata clamped in the first clamping plates 111 or the second clamping plates 113 can be stretched to equal width.

[0033] After the fascia lata is fully expanded, the fascia lata is removed from the clamping mechanism, one end is pulled out of the subcutaneous tissue, and then the device is taken out, leaving the fascia lata in the patient's body, completing the entire implantation process of the fascia lata. The fascia lata is clamped by the clamping mechanism, and the equal-width expansion mechanism drives the two clamping mechanisms to expand the fascia lata to an equal width in the supraspinatus muscle, thereby increasing the contact area between the fascia lata and the supraspinatus muscle, thereby promoting healing, and solving the technical problem that the existing treatment methods for rotator cuff tears cannot achieve satisfactory postoperative effects after treatment.

[0034] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A fascia lata clamping and spreading implanter, comprising a fixing plate, characterized in that: The cam is provided with a plurality of movable plates, and the movable plates are provided with a plurality of movable plates respectively. The movable plates are provided with a plurality of movable plates respectively. The movable plates are provided with a plurality of movable plates respectively. The movable plates are provided with a plurality of movable plates respectively. The movable plates are provided with a plurality of movable plates respectively. The movable plates are provided with a plurality of movable plates respectively. The movable plates are provided with a plurality of movable plates respectively. The movable plates are provided with a plurality of movable plates respectively. The movable plates are provided with a plurality of movable plates respectively. The movable plates are provided with a plurality of movable plates respectively. The movable plates are provided with a plurality of movable plates respectively. The movable plates are provided with a plurality of movable plates respectively.

2. The fascia lata clamping and spreading implanter according to claim 1, characterized in that: The equidistant spreading mechanism includes a first spreading member and a second spreading member, wherein the first spreading member is used for laterally moving the movable plate on the left side, and the second spreading member is used for laterally moving the movable plate on the right side.

3. The fascia lata clamping and spreading implanter according to claim 2, characterized in that: The first opening member includes a first opening plate and a first handle. The first opening plate is movably arranged below the movable plate on the left side and passes through the fixed plate. The first handle is arranged outside the first opening plate.

4. The fascia lata clamping and spreading implanter according to claim 3, characterized in that: The second opening member includes a second opening plate and a second handle. The second opening plate is movably arranged below the movable plate on the right side and passes through the fixed plate. The second handle is arranged outside the second opening plate and on a side away from the first opening plate.

5. The fascia lata clamping and spreading implanter according to claim 1, characterized in that: The clamping mechanism includes a first clamping rod and a second clamping rod, and the first clamping rod and the second clamping rod are respectively arranged on the left and right sides of the moving block. Through the cooperation of the first clamping rod and the second clamping rod, different positions of the fascia lata are clamped.

6. The fascia lata clamping and spreading implanter according to claim 5, characterized in that: The first clamping rod includes a first movable block and a first clamping plate. The first movable block is slidably arranged on the left side of the moving block. There are two first clamping plates, which are respectively arranged on the front and rear sides of the first movable block.

7. The fascia lata clamping and spreading implanter according to claim 6, characterized in that: The second clamping rod includes a second movable block and a second clamping plate. The second movable block is slidably arranged on the right side of the movable block. There are two second clamping plates, which are respectively arranged on the front and rear sides of the second movable block, and the second clamping plate is slidably arranged in the first clamping plate at the corresponding position.

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