Device for implanting and unfolding biological patch

Abstract

The utility model provides a device for implanting and expanding a biological patch. The device comprises a handle mechanism, a transmission structure and an expanding mechanism, the handle mechanism comprises a fixed handle, a movable handle and a fixed part; the transmission mechanism comprises a guide pipe and a driving rod; the driving rod is connected with the movable handle; the guide pipe is connected with the fixed handle; the opening mechanism comprises a connecting rod assembly and two supporting plates. The connecting rod assembly is connected with the driving rod and the guide pipe. During use, the biological patch is fixed to the two supporting plates, then the driving rod is controlled to move through the movable handle, the connecting rod assembly drives the two supporting plates to be folded, and the biological patch is folded; the biological patch is placed in an operation position through a skin incision, the driving rod is controlled to move through the movable handle, the connecting rod assembly drives the two supporting plates to be unfolded, and the biological patch is unfolded. According to the utility model, additional operation holes do not need to be formed in the shoulders of a patient, so that unnecessary wounds and pains can be prevented from being brought to the patient, and the infection risk of the patient is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a device for implanting and unfolding a biological patch. Background Art

[0002] The rotator cuff, also known as the rotator muscle cuff, is composed of the supraspinatus muscle, infraspinatus muscle, teres minor muscle and subscapularis muscle, and plays a key role in the stability and movement support of the shoulder joint. Rotator cuff tears can cause shoulder joint pain, stiffness and limited movement, which have a great impact on the quality of life of patients. A massive rotator cuff tear refers to an injury with multiple rotator cuff tears (≥2) or a rotator cuff tear width of more than 5 cm, which is a relatively difficult type of rotator cuff injury in clinical practice. If not treated correctly and in a timely manner, it will develop into rotator cuff arthropathy in the later stage, and even require joint replacement treatment. The treatment of massive rotator cuff tears has always been the focus of attention of sports medicine doctors around the world. From simple conservative treatment to arthroscopic acromioplasty and debridement, arthroscopic partial repair and tendon transfer surgery, etc., can effectively relieve pain in the short term, but the improvement of motor function and the long-term maintenance of postoperative effects are not ideal.

[0003] For massive rotator cuff tears, traditional treatment methods include physical therapy, drug therapy and surgical treatment, etc. However, these methods cannot completely cure massive rotator cuff tears and can only relieve symptoms. Therefore, more and more doctors have begun to use patch technology to treat rotator cuff tears. The patch technology is to use a biological patch to attach to the surface of the torn rotator cuff and suture it to the damaged tendon, so as to increase the stability and tensile strength of the tendon, and promote the healing and recovery of the damaged area of the rotator cuff tissue. During the patch rotator cuff repair surgery, an incision is usually made at the surgical site, and then the biological patch is placed at the corresponding position through a pipeline, etc., and finally the biological patch is sutured around the damaged area with a needle and thread. However, when the biological patch is placed through the incision, after the biological patch is placed at the surgical site, it is generally in a curled and folded state, so the biological patch needs to be unfolded. In the prior art, generally 5-6 operation holes are pre-opened at a predetermined position on the patient's shoulder. After the biological patch is input into the damaged area, the biological patch is unfolded around through the pre-opened operation holes, and the operation holes are sutured after the operation is completed. The method of opening multiple operation holes on the patient's shoulder adopted in the above process is likely to increase the infection risk of the patient, prolong the healing and recovery time of the patient's shoulder, thus bringing unnecessary trauma and pain to the patient. At the same time, the operations of opening multiple operation holes and suturing the operation holes also increase the extra workload of medical staff.

[0004] Therefore, there is a need to provide a device for implanting and unfolding a biological patch that can not only avoid opening multiple operation holes on the patient's shoulder, but also conveniently unfold the skin patch. Summary of the Utility Model

[0005] Therefore, the technical problem to be solved by the present utility model is to overcome the technical defect that after a biological patch is placed into a patient through a pipeline in the prior art, 5-6 operation holes need to be opened in the patient's shoulder, and then the biological patch is unfolded around through the operation holes, thus prolonging the recovery time of the patient's shoulder, bringing unnecessary trauma and pain to the patient. At the same time, the operations of opening multiple operation holes and suturing the operation holes also increase the extra workload of medical staff. Therefore, a device for implanting and unfolding a biological patch is provided, which can not only avoid opening multiple operation holes in the patient's shoulder, but also conveniently unfold the skin patch.

[0006] To this end, the present utility model provides a device for implanting and unfolding a biological patch, comprising:

[0007] A handle mechanism, comprising a fixed handle, a movable handle movably connected to the fixed handle, and a fixing member for locking the movable handle to the fixed handle;

[0008] A transmission mechanism, comprising a guide tube and a driving rod movably disposed inside the guide tube; the proximal end of the driving rod is connected to the movable handle, and the proximal end of the guide tube is connected to the fixed handle;

[0009] A spreading mechanism, comprising two oppositely disposed support plates and a connecting rod assembly connected between the two support plates; two groups of fixing holes are oppositely disposed on the two support plates, and the fixing holes are used for suturing and fixing a biological patch on the two support plates; the connecting rod assembly is respectively connected to the distal ends of the driving rod and the guide tube; when the driving rod reciprocates along the length direction relative to the guide tube, the two support plates can be controlled to spread to both sides or retract to the middle.

[0010] Further, the connecting rod assembly comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod with equal lengths;

[0011] The middle of the first connecting rod and the middle of the second connecting rod are hinged to a first hinge shaft, and the first hinge shaft is rotatably connected to the distal end of the driving rod through a first mounting structure; the middle of the third connecting rod and the middle of the fourth connecting rod are hinged to a second hinge shaft, and the second hinge shaft is rotatably connected to the distal end of the guide tube through a second mounting structure; the first hinge shaft is located at one end away from the handle mechanism, and the second hinge shaft is located between the first hinge shaft and the handle mechanism;

[0012] The opposite ends of the first connecting rod and the third connecting rod are rotatably connected to one of the support plates through a third hinge shaft, and the opposite ends of the second connecting rod and the fourth connecting rod are rotatably connected to the other support plate through a fourth hinge shaft;

[0013] One end of the first connecting rod and the third connecting rod facing away from each other are respectively slidably connected to the other support plate, and one end of the second connecting rod and the fourth connecting rod facing away from each other are respectively slidably connected to one support plate.

[0014] Further, pulleys are respectively installed at the end portions of the first connecting rod and the third connecting rod facing away from each other, and a chute capable of slidingly cooperating with the pulleys is provided on the support plate on the same side as the end portions of the first connecting rod and the third connecting rod facing away from each other;

[0015] and / or,

[0016] Pulleys are respectively installed at the end portions of the second connecting rod and the fourth connecting rod facing away from each other, and a chute capable of slidingly cooperating with the pulleys is provided on the support plate on the same side as the end portions of the second connecting rod and the fourth connecting rod facing away from each other.

[0017] Further, the first mounting structure includes:

[0018] A U-shaped head formed at the distal end of the driving rod;

[0019] A first mounting rod, one end of which is rotatably connected to the U-shaped head and the other end of which is rotatably connected to the first hinge shaft.

[0020] Further, the second mounting structure includes:

[0021] A mounting block fixedly connected to the inner wall of the distal end of the guide tube;

[0022] A second mounting rod, parallel and opposite to the first mounting rod, one end of which is fixedly connected to the mounting block and the other end of which is rotatably connected to the second hinge shaft.

[0023] Further, it further includes a guiding structure, and the guiding structure includes:

[0024] A second guiding groove is opened on the second mounting rod, located between the mounting block and the second hinge shaft, and extends along the length direction of the second mounting rod;

[0025] A guiding column is provided on the first mounting rod, and the guiding column extends into the second guiding groove and is slidably connected to the second guiding groove;

[0026] A first guiding groove is opened on the first mounting rod, located between the guiding column and the first hinge shaft, and extends along the length direction of the first mounting rod;

[0027] A guiding portion is formed at one end of the second hinge shaft facing the first mounting rod, and the guiding portion extends into the first guiding groove and is slidably connected to the first guiding groove.

[0028] Further, the fixed handle includes:

[0029] A long handle;

[0030] A cross bar, one end of which is fixedly connected to the long handle, and the middle part of the cross bar is hingedly installed with the movable handle;

[0031] A short handle, which is fixedly connected to the other end of the cross bar and is arranged opposite to the long handle left and right; a through hole is opened in the short handle, and the proximal end of the guide tube is fixedly installed inside the through hole so that the proximal end of the drive rod can pass through the through hole and be movably connected to the movable handle through a third installation structure.

[0032] Further, the third installation structure includes:

[0033] An installation cavity is opened on the movable handle, including a first installation cavity and a second installation cavity that communicate with each other; the first installation cavity has a first installation cavity opening correspondingly opened on the front side and / or the rear side of the movable handle, and the second installation cavity has a second installation cavity opening correspondingly opened on the side of the movable handle facing the short handle;

[0034] A placement cavity is opened horizontally inside the movable handle and communicates with the first installation cavity and the second installation cavity. The placement cavity has placement openings that communicate with the first installation cavity opening and the second installation cavity opening respectively;

[0035] A ball head is movably arranged inside the first installation cavity, and the outer diameter of the ball head is greater than the width of the communicating part of the first installation cavity and the second installation cavity;

[0036] A connecting rod is movably arranged inside the second installation cavity, one end of which is fixedly connected to the ball head, and the other end extends out of the second installation cavity and is fixedly connected to the proximal end of the drive rod; the connecting rod can enter and exit the second installation cavity through the placement cavity to drive the ball head to enter and exit the first installation cavity.

[0037] Further, it further includes:

[0038] An adjustment opening is opened upward from the bottom end of the short handle, penetrates through the through hole and continues to extend for a certain length, and a part of the short handle is cut to form a first short handle and a second short handle;

[0039] An adjustment hole is arranged below the through hole and penetrates through the first short handle and the second short handle, including a light hole section located on the first short handle and a threaded section located on the second short handle;

[0040] An adjustment bolt can be inserted into the light hole section of the adjustment hole and is screwed to the threaded section of the adjustment hole.

[0041] Furthermore, one end of the fixing member is fixedly connected to the long handle, and the other end extends toward the short handle, and is provided with a locking hook for hooking and fixing the movable handle.

[0042] The technical solution provided by the utility model has the following advantages:

[0043] The utility model discloses a device for implanting and unfolding a biological patch, comprising a handle mechanism, a transmission structure and a spreading mechanism; wherein the handle mechanism comprises a fixed handle, a movable handle movably connected to the fixed handle and a fixing member for locking the movable handle with the fixed handle; the transmission mechanism comprises a guide tube and a driving rod movably inserted into the guide tube; the proximal end of the driving rod is connected to the movable handle, and the proximal end of the guide tube is connected to the fixed handle; the spreading mechanism comprises two supporting plates arranged opposite to each other and a connecting rod assembly connected between the two supporting plates; two groups of fixing holes are arranged opposite to each other on the two supporting plates, the fixing holes are used for suturing and fixing the biological patch on the two supporting plates, and the connecting rod assembly is respectively connected to the distal end of the driving rod and the distal end of the guide tube; when the driving rod reciprocates along the length direction relative to the guide tube, the two supporting plates can be controlled to spread out to both sides or retract to the middle.

[0044] The utility model discloses a device for implanting and unfolding a biological patch. Two support plates are used to fix the biological patch. When the connecting rod assembly drives the two support plates to be folded toward the middle, the biological patch is folded. At this time, the radial size of the expansion mechanism on which the biological patch is fixed becomes smaller, thereby facilitating insertion from a skin incision. When the connecting rod assembly drives the two support plates to be unfolded toward both sides, the biological patch is unfolded, thereby facilitating medical personnel to sew the biological patch to the damaged area of ​​the rotator cuff tear. In the process of controlling the two support plates to be unfolded or folded by the transmission mechanism, the driving rod only reciprocates along the length direction relative to the guide tube, but does not move in the radial direction, thereby not affecting the opening size of the skin incision.

[0045] The device for implanting and unfolding a biological patch of the utility model, when in use, first fix the biological patch to the two support plates through the fixing hole, then control the movement of the driving rod through the movable handle, so that the connecting rod assembly drives the two support plates to be retracted toward the middle, and then the biological patch is folded; the opening mechanism fixed with the biological patch is delivered to the surgical site through the skin incision, and the driving rod is controlled to move through the movable handle, so that the connecting rod assembly drives the two support plates to be unfolded to both sides, and then the biological patch is unfolded. Then the medical staff can use the locking hook to hook and fix the movable handle, separate the biological patch from the two support plates, control the movement of the driving rod through the movable handle, so that the connecting rod assembly drives the two support plates to be retracted toward the middle, and remove the opening mechanism from the patient's body through the skin incision. The utility model does not need to open an additional operation hole on the patient's shoulder, thereby avoiding unnecessary trauma and pain to the patient and reducing the risk of infection for the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the prior art or the specific implementation methods of the present utility model, the drawings used in the description of the prior art or the specific implementation methods are briefly introduced below.

[0047] Figure 1 It is a schematic diagram of the overall structure of a device for implanting and deploying a biological patch according to the utility model.

[0048] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure of part A.

[0049] Figure 3 yes Figure 1 Schematic diagram of the enlarged structure of part B.

[0050] Figure 4 yes Figure 1 Another stereogram of .

[0051] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of part C.

[0052] Reference numerals: 1, handle mechanism; 11, fixed handle; 111, long handle; 112, cross bar; 113, short handle; 1131, through hole; 1132, adjustment opening; 1133, adjustment hole; 1134, adjustment bolt; 1135, first short handle; 1136, second short handle; 12, movable handle; 121, first installation cavity; 1211, first installation cavity opening; 122, second installation cavity; 1221, second installation cavity opening; 123, placement cavity; 1231, placement opening; 13, fixing member; 131, locking hook; 2, transmission mechanism; 21, guide tube; 22, drive rod; 221, U-shaped head; 222, ball head; 223, connecting rod; 23, first mounting rod; 231, first guide groove; 232, guide post; 24, mounting block; 25, second mounting rod; 251, second guide groove; 3, spreading mechanism; 31, support plate; 311, chute; 312, fixing hole; 32, link assembly; 321, first link; 322, second link; 323, third link; 324, fourth link; 325, first hinge shaft; 326, second hinge shaft; 3261, guiding portion; 327, third hinge shaft; 328, fourth hinge shaft; 329, pulley. Detailed implementation manners

[0053] In order to enable those skilled in the art to better understand this solution, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0054] It should be noted that the terms "first", "second", etc. in the claims and the description of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to those steps or units clearly listed, but may also include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0055] In this application, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this application can be understood according to specific circumstances. Additionally, the meaning of the term "a plurality" should be two or more. It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other.

[0056] The following will describe this application in detail with reference to the drawings and in combination with embodiments.

[0057] This embodiment provides a device for implanting and deploying a biological patch, as Figures 1-5 shown, including a handle mechanism 1, a transmission mechanism 2, and a spreading mechanism 3; wherein, the handle mechanism 1 includes a fixed handle 11, a movable handle 12 movably connected to the fixed handle 11, and a fixing member 13 for locking the movable handle 12 to the fixed handle 11; the transmission mechanism 2 includes a guiding tube 21 and a driving rod 22 movably disposed inside the guiding tube 21; the proximal end of the driving rod 22 is connected to the movable handle 12, and the proximal end of the guiding tube 21 is connected to the fixed handle 11; the spreading mechanism 3 includes two oppositely arranged support plates 31 and a connecting rod assembly 32 connected between the two support plates 31; two sets of fixing holes 312 are oppositely arranged on the two support plates 31, and the fixing holes 312 are used to suture and fix the biological patch on the two support plates 31; the connecting rod assembly 32 is respectively connected to the distal ends of the driving rod 22 and the guiding tube 21; when the driving rod 22 reciprocates along the length direction relative to the guiding tube 21, it can control the two support plates 31 to spread to both sides or retract towards the middle.

[0058] In the device for implanting and deploying a biological patch of this embodiment, two support plates 31 are used to fix the biological patch. When the connecting rod assembly 32 drives the two support plates 31 to be retracted toward the middle, the biological patch is retracted. At this time, the radial size of the expansion mechanism 3 on which the biological patch is fixed becomes smaller, thereby facilitating the insertion from the skin incision; when the connecting rod assembly 32 drives the two support plates 31 to be deployed to both sides, the biological patch is deployed, which facilitates medical staff to suture the biological patch to the damaged area of ​​the rotator cuff tear; in the process of controlling the two support plates 31 to be deployed or retracted by the transmission mechanism 2, the driving rod 22 only reciprocates in the length direction relative to the guide tube 21, and does not move in the radial direction, thereby not affecting the opening size of the skin incision.

[0059] When using the device for implanting and deploying a biological patch of this embodiment, the biological patch is first fixed to the two support plates 31 through the fixing hole 312, and then the movable handle 12 is used to control the movement of the driving rod 22 so that the connecting rod assembly 32 drives the two support plates 31 to be retracted toward the middle, thereby retracting the biological patch; the spreading mechanism 3 with the biological patch fixed is delivered to the surgical site through the skin incision, and the movable handle 12 is used to control the movement of the driving rod 22 so that the connecting rod assembly 32 drives the two support plates 31 to be deployed toward both sides, thereby deploying the biological patch. Next, the medical staff can use the locking hook 131 to hook and fix the movable handle 12, and then separate the biological patch from the two support plates 31, and then control the movement of the driving rod 22 through the movable handle 12 so that the connecting rod assembly 32 drives the two support plates 31 to be retracted toward the middle, and remove the spreading mechanism 3 from the patient through the skin incision.

[0060] The device for implanting and deploying a biological patch in this embodiment. Further, the link assembly 32 includes a first link 321, a second link 322, a third link 323, and a fourth link 324 with equal lengths; the middle of the first link 321 and the middle of the second link 322 are hinged to a first hinge shaft 325, and the first hinge shaft 325 is rotatably connected to the distal end of the drive rod 22 through a first mounting structure; the middle of the third link 323 and the middle of the fourth link 324 are hinged to a second hinge shaft 326, and the second hinge shaft 326 is rotatably connected to the distal end of the guide tube 21 through a second mounting structure; the first hinge shaft 325 is located at the end away from the handle mechanism 1, and the second hinge shaft 326 is located between the first hinge shaft 325 and the handle mechanism 1; the opposite ends of the first link 321 and the third link 323 are rotatably connected to one of the support plates 31 through a third hinge shaft 327, and the opposite ends of the second link 322 and the fourth link 324 are rotatably connected to the other support plate 31 through a fourth hinge shaft 328; the opposite ends of the first link 321 and the third link 323 are respectively slidably connected to the other support plate 31, and the opposite ends of the second link 322 and the fourth link 324 are respectively slidably connected to one of the support plates 31.

[0061] The device for implanting and deploying a biological patch in this embodiment. Further, pulleys 329 are respectively installed at the end portions of the opposite ends of the first link 321 and the third link 323, and sliding grooves 311 capable of slidingly cooperating with the pulleys 329 are provided on the support plate 31 on the same side as the opposite ends of the first link 321 and the third link 323; and / or, pulleys 329 are respectively installed at the end portions of the opposite ends of the second link 322 and the fourth link 324, and sliding grooves 311 capable of slidingly cooperating with the pulleys 329 are provided on the support plate 31 on the same side as the opposite ends of the second link 322 and the fourth link 324.

[0062] In this embodiment, by providing the pulleys 329 and the sliding grooves 311, it can be ensured that the relative movement between the opposite ends of the first link 321 and the third link 323, and the opposite ends of the second link 322 and the fourth link 324 and the two support plates 31 is smoother, avoiding jamming and affecting the retraction and deployment of the biological patch.

[0063] The device for implanting and deploying a biological patch in this embodiment. The first mounting structure includes a U-shaped head 221 and a first mounting rod 23; the U-shaped head 221 is formed at the distal end of the drive rod 22; one end of the first mounting rod 23 is rotatably connected to the U-shaped head 221, and the other end is rotatably connected to the first hinge shaft 325.

[0064] The device for implanting and deploying a biological patch of this embodiment, further, the second mounting structure includes a mounting block 24 and a second mounting rod 25; the mounting block 24 is fixedly connected to the inner wall of the distal end of the guide tube 21; the second mounting rod 25 is parallel to and opposite to the first mounting rod 23, one end is fixedly connected to the mounting block 24, and the other end is rotatably connected to the second hinge shaft 326.

[0065] The device for implanting and deploying a biological patch of this embodiment further includes a guiding structure, which includes a first guiding groove 231, a guiding portion 3261, a guiding column 232 and a second guiding groove 251; the second guiding groove 251 is provided on the second mounting rod 25, is located between the mounting block 24 and the second hinge shaft 326, and extends along the length direction of the second mounting rod 25; the guiding column 232 is provided on the first mounting rod 23, the guiding column 232 extends into the interior of the second guiding groove 251 and is slidably connected to the second guiding groove 251; the first guiding groove 231 is provided on the first mounting rod 23, is located between the guiding column 232 and the first hinge shaft 325, and extends along the length direction of the first mounting rod 23; the guiding portion 3261 is formed at one end of the second hinge shaft 326 facing the first mounting rod 23, the guiding portion 3261 extends into the interior of the first guiding groove 231 and is slidably connected to the first guiding groove 231.

[0066] In this embodiment, the first mounting rod 23 can be supported by the sliding cooperation between the guide column 232 and the second guide groove 251, and the sliding cooperation between the guide portion 3261 and the first guide groove 231. At the same time, it can also be ensured that the movement trajectory of the first mounting rod 23 is always along the extension direction of the second mounting rod 25, thereby ensuring that the relative movement between the first hinge shaft 325 and the second hinge shaft 326 is also always along the extension direction of the second mounting rod 25, and no radial deviation occurs, thereby ensuring the stability of the expansion mechanism 3 during the deformation process.

[0067] The device for implanting and deploying a biological patch in this embodiment, the fixed handle 11 includes a long handle 111, a cross bar 112 and a short handle 113; one end of the cross bar 112 is fixedly connected to the long handle 111, and the movable handle 12 is hingedly installed in the middle of the cross bar 112; the short handle 113 is fixedly connected to the other end of the cross bar 112, and is arranged opposite to the long handle 111 on the left and right; the short handle 113 is provided with a through hole 1131, and the inside of the through hole 1131 is used to fix the proximal end of the guide tube 21, so that the proximal end of the drive rod 22 can pass through the through hole 1131 and be movably connected to the movable handle 12 through a third mounting structure.

[0068] The device for implanting and deploying a biological patch in this embodiment, further, the third mounting structure includes a mounting cavity, a placement cavity 123, a ball head 222, and a connecting rod 223; the mounting cavity is formed in the movable handle 12 and includes a first mounting cavity 121 and a second mounting cavity 122 that communicate with each other; the first mounting cavity 121 has a first mounting cavity opening 1211 correspondingly formed on the front side and / or the rear side of the movable handle 12, and the second mounting cavity 122 has a second mounting cavity opening 1221 correspondingly formed on the side of the movable handle 12 facing the short handle 113; the placement cavity 123 is horizontally formed inside the movable handle 12 and communicates with the first mounting cavity 121 and the second mounting cavity 122, and the placement cavity 123 has a placement opening 1231 that communicates with the first mounting cavity opening and the second mounting cavity opening respectively; the ball head 222 is movably arranged inside the first mounting cavity 121, and the outer diameter of the ball head 222 is greater than the width of the communicating part of the first mounting cavity 121 and the second mounting cavity 122; the connecting rod 223 is movably arranged inside the second mounting cavity 122, one end is fixedly connected to the ball head 222, and the other end extends out of the second mounting cavity 122 and is fixedly connected to the proximal end of the driving rod 22; the connecting rod 223 can enter and exit the second mounting cavity 122 through the placement cavity 123 to drive the ball head 222 to enter and exit the first mounting cavity 121.

[0069] The device for implanting and deploying a biological patch in this embodiment, further, further includes an adjustment opening 1132, an adjustment hole 1133, and an adjustment bolt 1134; the adjustment opening 1132 is formed upward from the bottom end of the short handle 113, penetrates the through hole 1131 and then continues to extend for a certain length, cutting a part of the short handle 113 to form a first short handle 1135 and a second short handle 1136; the adjustment hole 1133 is arranged below the through hole 1131 and penetrates the first short handle 1135 and the second short handle 1136, including a light hole section located on the first short handle 1135 and a threaded section located on the second short handle 1136; the adjustment bolt 1134 can be inserted into the light hole section of the adjustment hole 1133 and is screwed to the threaded section of the adjustment hole 1133.

[0070] The device for implanting and deploying a biological patch in this embodiment, by providing the adjustment opening 1132, the adjustment hole 1133, and the adjustment bolt 1134, can conveniently disassemble and separate the transmission mechanism 2 from the handle mechanism 1, so as to facilitate the adjustment and maintenance of each component.

[0071] The device for implanting and deploying a biological patch of this embodiment can also adjust the deflection angle of the spreading mechanism 3 around the horizontal axis, so that the biological patch after deployment can be easily and smoothly matched with the damaged area. Specifically, first loosen the adjustment bolt 1134 to make the first short handle 1135 and the second short handle 1136 loosen the clamping of the guide tube 21, and then rotate the guide tube 21 and the driving rod 22 to rotate the spreading mechanism 3 around the horizontal axis. After the spreading mechanism 3 is rotated to a suitable angle, tighten the adjustment bolt 1134 to make the first short handle 1135 and the second short handle 1136 clamp the guide tube 21 again.

[0072] In the device for implanting and deploying a biological patch of this embodiment, one end of the fixing member 13 is fixedly connected to the long handle 111, and the other end extends toward the short handle 113, and is provided with a locking hook 131 for hooking and fixing the movable handle 12.

[0073] When the biological patch needs to be maintained in the expanded state for a long time, the movable handle 12 can be hooked and fixed by the locking hook 131, so that there is no need to continuously apply force to the movable handle 12 with fingers, thereby reducing hand fatigue and improving the comfort of medical staff when using the device.

[0074] The working process of the device for implanting and deploying a biological patch in this embodiment is as follows:

[0075] First, the deflection angle of the expansion mechanism 3 around the horizontal axis is adjusted accordingly according to the damaged area of ​​the patient, so that the unfolded biological patch can be easily and smoothly matched with the damaged area, and then the two ends of the biological patch are sutured to the two support plates 31 through the fixing holes 312. Alternatively, the biological patch can be fixed to the two support plates 31 first, and then the deflection angle of the expansion mechanism 3 around the horizontal axis is adjusted accordingly according to the damaged area of ​​the patient; the driving rod 22 is controlled to move by the movable handle 12, so that the driving rod 22 drives the first hinge shaft 325 to move in a direction away from the second hinge shaft 326 through the first mounting rod 23, so that the connecting rod assembly 32 drives the two support plates 31 to be retracted to the middle, thereby retracting the biological patch;

[0076] The spreading mechanism 3 with the biological patch fixed thereon is delivered to the surgical site through the skin incision, and the driving rod 22 is controlled to move by the movable handle 12, so that the driving rod 22 drives the first hinge shaft 325 to move toward the direction close to the second hinge shaft 326 through the first mounting rod 23, so that the connecting rod assembly 32 drives the two support plates 31 to expand to both sides, thereby expanding the biological patch;

[0077] Use the locking hook 131 to hook and fix the movable handle 12, then separate the biological patch from the two support plates 31, and control the movement of the driving rod 22 again through the movable handle 12, so that the driving rod 22 drives the first hinge axis 325 to move away from the second hinge axis 326 through the first mounting rod 23, so that the connecting rod assembly 32 drives the two support plates 31 to be retracted toward the middle, and then the expansion mechanism 3 is removed from the patient's body through the skin incision.

[0078] Obviously, the above embodiments are merely examples for clear explanation, and are not intended to limit the implementation methods. 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. The obvious changes or modifications derived from them are still within the protection scope of this innovative technical solution.

Claims

1. A device for implanting and deploying a biological patch, characterized in that, Comprising: A handle mechanism (1), including a fixed handle (11), a movable handle (12) movably connected to the fixed handle (11), and a fixing member (13) for locking the movable handle (12) to the fixed handle (11); A transmission mechanism (2), including a guide tube (21) and a driving rod (22) movably disposed inside the guide tube (21); the proximal end of the driving rod (22) is connected to the movable handle (12), and the proximal end of the guide tube (21) is connected to the fixed handle (11); A spreading mechanism (3), including two oppositely disposed support plates (31) and a connecting rod assembly (32) connected between the two support plates (31); two sets of fixing holes (312) are oppositely disposed on the two support plates (31), and the fixing holes (312) are used for suturing and fixing a biological patch on the two support plates (31); the connecting rod assembly (32) is respectively connected to the distal end of the driving rod (22) and the distal end of the guide tube (21); when the driving rod (22) reciprocates along the length direction relative to the guide tube (21), it can control the two support plates (31) to expand to both sides or retract towards the middle.

2. The device for implanting and deploying a biological patch according to claim 1, characterized in that, The connecting rod assembly (32) includes a first connecting rod (321), a second connecting rod (322), a third connecting rod (323), and a fourth connecting rod (324) with equal lengths; The middle of the first connecting rod (321) and the middle of the second connecting rod (322) are hinged to a first hinge shaft (325), and the first hinge shaft (325) is rotatably connected to the distal end of the driving rod (22) through a first mounting structure; the middle of the third connecting rod (323) and the middle of the fourth connecting rod (324) are hinged to a second hinge shaft (326), and the second hinge shaft (326) is rotatably connected to the distal end of the guide tube (21) through a second mounting structure; the first hinge shaft (325) is located at one end away from the handle mechanism (1), and the second hinge shaft (326) is located between the first hinge shaft (325) and the handle mechanism (1); One end of the first connecting rod (321) and the third connecting rod (323) opposite to each other is rotatably connected to one of the support plates (31) through a third hinge shaft (327), and one end of the second connecting rod (322) and the fourth connecting rod (324) opposite to each other is rotatably connected to the other support plate (31) through a fourth hinge shaft (328); The opposite ends of the first connecting rod (321) and the third connecting rod (323) are respectively slidably connected to the other support plate (31), and the opposite ends of the second connecting rod (322) and the fourth connecting rod (324) are respectively slidably connected to one of the support plates (31).

3. The device for implanting and deploying a biological patch according to claim 2, wherein Pulleys (329) are respectively installed at the end portions of the opposite ends of the first connecting rod (321) and the third connecting rod (323), and a chute (311) capable of slidingly cooperating with the pulleys (329) is provided on the support plate (31) on the same side as the opposite ends of the first connecting rod (321) and the third connecting rod (323); and / or, Pulleys (329) are respectively installed at the end portions of the opposite ends of the second connecting rod (322) and the fourth connecting rod (324), and a chute (311) capable of slidingly cooperating with the pulleys (329) is provided on the support plate (31) on the same side as the opposite ends of the second connecting rod (322) and the fourth connecting rod (324).

4. The device for implanting and deploying a biological patch according to claim 3, wherein, The first mounting structure includes: A U-shaped head (221) formed at the distal end of the driving rod (22); A first mounting rod (23) with one end rotatably connected to the U-shaped head (221) and the other end rotatably connected to the first hinge shaft (325).

5. The device for implanting and deploying a biological patch according to claim 4, characterized in that, The second mounting structure includes: A mounting block (24) fixedly connected to the inner wall of the distal end of the guide tube (21); A second mounting rod (25) parallel and opposite to the first mounting rod (23), with one end fixedly connected to the mounting block (24) and the other end rotatably connected to the second hinge shaft (326).

6. The device for implanting and deploying a biological patch according to claim 5, wherein It further includes a guiding structure, and the guiding structure includes: A second guiding groove (251) opened on the second mounting rod (25), located between the mounting block (24) and the second hinge shaft (326), and extending along the length direction of the second mounting rod (25); A guiding column (232) provided on the first mounting rod (23), and the guiding column (232) extends into the second guiding groove (251) and is slidably connected to the second guiding groove (251); A first guiding groove (231) opened on the first mounting rod (23), located between the guiding column (232) and the first hinge shaft (325), and extending along the length direction of the first mounting rod (23); A guiding portion (3261) formed at one end of the second hinge shaft (326) facing the first mounting rod (23), and the guiding portion (3261) extends into the first guiding groove (231) and is slidably connected to the first guiding groove (231).

7. The device for implanting and deploying a biological patch according to claim 5, wherein, The fixed handle (11) includes: A long handle (111); A cross bar (112) with one end fixedly connected to the long handle (111), and the movable handle (12) is hingedly installed in the middle of the cross bar (112); A short handle (113) fixedly connected to the other end of the cross bar (112) and arranged opposite to the long handle (111) left and right; a through hole (1131) is opened on the short handle (113), and the proximal end of the guide tube (21) is fixedly installed inside the through hole (1131) so that the proximal end of the driving rod (22) can pass through the through hole (1131) and be movably connected to the movable handle (12) through a third mounting structure.

8. The device for implanting and deploying a biological patch according to claim 7, wherein, The third mounting structure includes: The installation cavity is formed on the movable handle (12) and includes a first installation cavity (121) and a second installation cavity (122) that are in communication with each other. The first installation cavity (121) has a first installation cavity opening (1211) correspondingly formed on the front side and / or the rear side of the movable handle (12). The second installation cavity (122) has a second installation cavity opening (1221) correspondingly formed on the side of the movable handle (12) facing the short handle (113). The placement cavity (123) is horizontally formed inside the movable handle (12) and communicates with the first installation cavity (121) and the second installation cavity (122). The placement cavity (123) has a placement opening (1231) that communicates with the first installation cavity opening and the second installation cavity opening respectively. The ball head (222) is movably arranged inside the first installation cavity (121). The outer diameter of the ball head (222) is larger than the width of the communicating part between the first installation cavity (121) and the second installation cavity (122). The connecting rod (223) is movably arranged inside the second installation cavity (122). One end of the connecting rod (223) is fixedly connected to the ball head (222), and the other end extends out of the second installation cavity (122) and is fixedly connected to the proximal end of the driving rod (22). The connecting rod (223) can enter and exit the second installation cavity (122) through the placement cavity (123) to drive the ball head (222) to enter and exit the first installation cavity (121).

9. The device for implanting and deploying a biological patch according to claim 7, wherein It further includes: The adjustment opening (1132) is formed upward from the bottom end of the short handle (113), penetrates through the through hole (1131) and continues to extend for a certain length, cutting a part of the short handle (113) to form a first short handle (1135) and a second short handle (1136). The adjustment hole (1133) is arranged below the through hole (1131) and penetrates through the first short handle (1135) and the second short handle (1136). It includes a light hole section located on the first short handle (1135) and a threaded section located on the second short handle (1136). The adjustment bolt (1134) can be inserted into the light hole section of the adjustment hole (1133) and is screwed to the threaded section of the adjustment hole (1133).

10. The device for implanting and deploying a biological patch according to claim 7, wherein One end of the fixing member (13) is fixedly connected to the long handle (111), and the other end extends towards the short handle (113) and is provided with a locking hook (131) for hooking and fixing the movable handle (12).

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