Novel tendon suturing instrument

Abstract

The utility model provides a novel tendon suturing instrument which comprises a clamping head, a sliding rod and a connecting rod, the clamping head is used for clamping a broken end of a tendon and is also used for needle suturing, the sliding rod is used for enabling the clamping head to be always in a parallel and aligned state in the clamping process, and stable contact of the clamping head and reliable alignment of needle holes in the two sides are ensured; the lock catch is arranged on the connecting rod to lock the clamping state, so that the suture operation of the broken end of the tendon is facilitated; the inner side surface of the clamping head is provided with symmetrically and uniformly distributed conical spines which are used for quickly clamping the surface of the smooth tendon; when the novel tendon suturing instrument is used for suturing tendons, the suturing effect does not depend on experience of operators, the requirement for early rehabilitation of patients can be met, operation is easy, and suturing efficiency is high.

Description

Technical Field

[0001] The utility model belongs to suture surgical instruments, and more specifically, relates to a novel tendon suture instrument. Background Art

[0002] Tendons are dense connective tissues composed of a parallel arrangement of collagen fibers, which serve as a bridge to connect muscles and bones. Tendon rupture is a common injury in the emergency department and orthopedics department, most of which are open injuries. It is reported that there are nearly 470,000 cases of hand tendon injuries and about 250,000 cases of Achilles tendon rupture in China every year. Tendon injuries often force professional athletes to end their sports careers and seriously affect people's normal lives. When performing tendon suture surgery, first, the soft tissues around the wound are separated to expose the tendon stumps. Secondly, the redundant tissues at the stumps are trimmed, and professional instruments are used to fix the two tendon stumps. Finally, the suture operation is performed. However, the current suture methods for treating Achilles tendon injuries in clinical practice are mechanically insufficient, and postoperative long-term plaster fixation and limb immobilization are often required. The long-term plaster fixation and limb immobilization inevitably lead to adhesive healing of the tendon, seriously affecting the patient's later functional recovery. In addition, most of the suture instruments currently used in clinical practice are simple surgical auxiliary instruments, and the suture effect depends mainly on the operator's experience. For the same suture method, the suture effects vary greatly. Irregular suture and poor mechanics are the main deficiencies of the current clinical suture techniques, making it difficult to meet the patient's early postoperative rehabilitation needs and the doctor's requirements for efficient and standardized treatment of ruptured Achilles tendons.

[0003] The two grasping clips of most tendon suture devices are connected by a rotating shaft. After the grasping clips clamp the tendon stumps, there is an angle between the two grasping clips and they are not aligned parallel. The grasping clips only have the function of clamping and fixing, so the needle passing holes are not directly set on the grasping clips. Instead, a cavity is sleeved outside the grasping clips, and centrally symmetric needle passing holes and / or symmetric needle passing holes are arranged on the cavity wall. This cavity accommodates the tendon stumps clamped and fixed by the grasping clips and performs suture needle passing. Such a setting results in a relatively complex structure of the tendon suture device and relatively inconvenient operation for suture needle passing.

[0004] Therefore, there is an urgent need for a novel tendon suture instrument to solve the above problems. Summary of the Utility Model

[0005] The utility model provides a novel tendon suture instrument, which comprises a clamping head, a sliding rod and a connecting rod. The clamping head is used for clamping the tendon stump and for needle threading and suturing. The sliding rod is used to keep the clamping head in a parallel and aligned state during the clamping process, ensuring stable contact of the clamping head and reliable alignment of the needle threading holes on both sides. A locking buckle is arranged on the connecting rod to lock the clamping state, facilitating the suture operation of the tendon stump. Symmetrically and evenly distributed conical spines are arranged on the inner side of the clamping head for quickly clamping the smooth tendon surface. When using the novel tendon suture instrument provided by the utility model for tendon suture, the suture effect does not depend on the operator's experience, can meet the early rehabilitation needs of patients, and is simple to operate with high suture efficiency.

[0006] A novel tendon suture instrument, characterized in that it comprises a clamping head and a sliding rod. The clamping head is used for clamping the tendon stump and for needle threading and suturing. The sliding rod is used to keep the clamping head in a parallel and aligned state during the clamping process, ensuring stable contact of the clamping head and reliable alignment of the needle threading holes on both sides.

[0007] When using this novel tendon suture instrument, hold the device by hand, gradually move the clamping head closer to one side of the tendon stump, move it to the ideal position, hold the two scissor handles tightly. The two sliding rods slide towards the end close to the clamping head in the sliding grooves of the two connecting rods through the balls at the same time. At this time, the two connecting rods gradually become parallel and aligned and approach each other, and the two clamping heads also gradually become parallel and aligned and approach each other. During the approaching process, the needle threading holes on the two clamping heads always remain in a parallel and aligned state until the conical spines on the clamping head are inserted into the tendon tissue, and one side of the tendon stump is clamped and fixed. Adjust the locking buckle to lock to the corresponding teeth to maintain the current clamping state, and perform needle threading and suturing through the needle threading holes on the clamping head. After the suturing is completed, loosen the locking buckle, and push the two scissor handles away by hand. The two clamping heads gradually become parallel and aligned and move away from each other, and their conical spines gradually disengage from the tendon tissue. Use the same method to clamp and complete the suture of the other tendon stump, and finally ligate and tie the suture threads at both ends.

[0008] Further, the clamping head comprises a first clamping head and a second clamping head, and the first clamping head and the second clamping head are symmetrically arranged; the sliding rod comprises a first sliding rod and a second sliding rod, and the first sliding rod and the second sliding rod are of equal length.

[0009] In some ways, the clamping head can make the clamping of the tendon more convenient and flexible, providing key technical means for the fixation, clamping and suture of tendons broken at different parts in clinical applications.

[0010] Further, the first clamping head and the second clamping head are also provided with needle threading holes.

[0011] In some ways, the needle passing holes on both sides of the first clamping head and the second clamping head of the clamping head are distributed on the wiring channels. There are multiple wiring channels, and one or more needle passing holes are provided on each wiring channel. The wiring channels on both sides of the first clamping head and the second clamping head are arranged in central symmetry. Generally, the suture needle relies on the needle passing holes on the wiring channels to pass through the tendon cross-section for suturing. Different suturing methods need to be matched with different wiring channels and needle passing holes. Different suturing methods include continuous loop suture method, continuous overedge suture method, Bunnel suture method, etc. For example, when using the continuous loop suture method and using the guide needle hole to guide the suture needle, the suture needle enters from the needle passing hole on one side and exits from the guide needle hole of the wiring channel on the opposite side, and these two steps are repeated continuously, so as to achieve the purpose of suturing the broken tendon. Generally, there are two broken tendons. The suture needle is used to suture the broken parts of the two tendons to make the broken parts in a closed state, so that the muscles can be produced and connected together in the later stage. Most of the suture instruments used clinically are simple surgical auxiliary instruments, and the suture effect depends more on the experience of the operator. However, using the present utility model can standardize the suture, so that the suture technique no longer depends on the experience of the operator.

[0012] Further, it further includes a connecting rod. The connecting rod includes a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are symmetrically arranged; the first connecting rod is connected to the first sliding rod through a fixing pin, and the second connecting rod is connected to the second sliding rod through a fixing pin.

[0013] Further, the first connecting rod and the second connecting rod are both provided with sliding grooves, and the first sliding rod and the second sliding rod are both provided with balls; the balls of the first sliding rod slide in the sliding groove of the second connecting rod, and the balls of the second sliding rod slide in the sliding groove of the first connecting rod; when the balls of the first sliding rod and the second sliding rod slide away from the clamping head end at the same time, the first connecting rod and the second connecting rod gradually become parallel and aligned closer, and the first clamping head and the second clamping head also gradually become parallel and aligned closer, so that the needle passing holes of the first clamping head and the second clamping head always remain in a parallel alignment state.

[0014] In some ways, the first connecting rod is connected to the first clamping head, and the second connecting rod is connected to the second clamping head. Therefore, when the first connecting rod and the second connecting rod move in parallel alignment, they drive the first clamping head and the second clamping head to move in parallel alignment as well.

[0015] In some ways, although there are various ways of needle passing and suturing, the needle passing routes of different suturing methods are fixed. Only when the needle passing holes of the first clamping head and the second clamping head always remain in a parallel alignment state can the needle passing and suturing be not only standardized but also fast and efficient.

[0016] Further, the first sliding rod and the second sliding rod are cross-connected through a connecting pin, and a notch is provided at the cross-connection part.

[0017] If the first connecting rod and the second connecting rod are connected by a rotating shaft in the same way as the connection of scissors, then in the clamping state, there is an angle between the first clamping head and the second clamping head, and it is impossible to align the needle-passing holes arranged on both sides thereof parallelly, which affects the needle-passing suture. However, the connection method adopted by the present utility model enables the first clamping head and the second clamping head to be always parallelly aligned during the opening or closing process, and further, the needle-passing holes on both sides are also parallelly aligned for suture needle-passing. Specifically, when the ball end of the first sliding rod slides along the sliding groove of the second connecting rod in a direction away from the clamping head, the other end of the first sliding rod rotates clockwise around the fixed pin; at the same time, the ball of the second sliding rod slides along the sliding groove of the first connecting rod in a direction away from the clamping head, and the other end of the second sliding rod rotates counterclockwise around the fixed pin; at the same time, the first sliding rod and the second sliding rod rotate around the connecting pin; at this time, the first connecting rod and the second connecting rod slowly approach and abut against each other, but still remain parallelly aligned, that is to say, the first clamping head and the second clamping head also slowly approach and abut against each other, but still remain parallelly aligned, and the needle-passing hole of the first clamping head and the needle-passing hole of the second clamping head are reliably aligned. On the contrary, when the ball end of the first sliding rod slides along the sliding groove of the second connecting rod in a direction close to the clamping head, the other end of the first sliding rod rotates counterclockwise around the fixed pin; at the same time, the ball of the second sliding rod slides along the sliding groove of the first connecting rod in a direction close to the clamping head, and the other end of the second sliding rod rotates clockwise around the fixed pin; at the same time, the first sliding rod and the second sliding rod rotate around the connecting pin; at this time, the distance between the first connecting rod and the second connecting rod gradually becomes larger, but still remains parallelly aligned, that is to say, the distance between the first clamping head and the second clamping head also slowly becomes larger, but still remains parallelly aligned.

[0018] In some ways, each of the first sliding rod and the second sliding rod is provided with a notch, and the notch limits the angle of alignment and rotation after the sliding rods cross, so that the sliding rods clamp the tendon after rotating within an effective range.

[0019] In some ways, through the combined action of the connecting pin and the ball, when the balls of the first sliding rod and the second sliding rod move along the sliding groove, the cross connection of the first sliding rod and the second sliding rod rotates around the connecting pin.

[0020] Furthermore, symmetrically and uniformly distributed conical spines are arranged on the inner sides of the first clamping head and the second clamping head, and the pointed ends of the conical spines are circular sections, and the sections are perpendicular to the central lines of the conical spines.

[0021] When suturing the two severed ends of the tendon, the tendon is prone to retraction, resulting in difficulties in the suture process, and there are important blood vessels and nerves near the tendon. If the position of the clamped tendon severed end is incorrect, it may damage the blood vessels and nerves, causing secondary injury to the patient. Through the design of the clamping head and the symmetrically and uniformly distributed conical spines on its inner side, the smooth-surfaced tendon suture severed end can be quickly and accurately clamped, and further, the tendon can be stably and reliably pulled.

[0022] Further, it further includes a latch for locking the clamping state, and the latch includes teeth and a shrapnel.

[0023] In some ways, when the clamping head is not in the clamping state, the latch can rotate through a rotating shaft to make the latch in an unlocked state; when the clamping head is in the clamping state, according to the degree of clamping, the latch can rotate through the rotating shaft to select and lock to the most suitable teeth. The teeth are designed with a unidirectional and consistent inclined structure and are evenly distributed, which is used for the one-way locking of the clamping head in the clamping state to achieve the effect of irreversible loosening. If the latch is already in the locked state, but it is found that the locked clamping state is not the most suitable, the shrapnel can be used to make the latch continue to adjust the sliding of the teeth on the card in the clamped state, so that the clamping degree is in the most suitable state.

[0024] In some ways, through the combined action of the card and the teeth, the latch effectively fixes the clamping head in the clamping state and achieves the effect of maintaining this fixed state.

[0025] Further, the second connecting rod is provided with a card and a groove for fixing the teeth, and the card is arranged in the groove.

[0026] In some ways, the groove is set to a semi-circular arc structure.

[0027] Further, the first connecting rod and the second connecting rod further include scissor handles.

[0028] In some ways, the setting of the scissor handles facilitates the application of force and makes the clamping effect better.

[0029] Therefore, the present utility model designs an available instrument that can standardize the suture method, is simple to operate, and can efficiently suture tendons. The device has strong suture mechanics and can meet the early rehabilitation needs of patients, solves the problems of tendon re-rupture and adhesion caused by long-term immobilization. The device's guiding suture can standardize the suture, making the suture effect independent of the operator's experience, and enabling the operator to efficiently and standardly suture the ruptured tendon during the operation. This utility model has greatly promoted the progress of clinical tendon suture technology, improved the treatment efficiency of doctors for ruptured tendons and patient satisfaction, and meets the development needs of social great health. It is a tendon suture device with unique functions.

[0030] The present utility model has the following beneficial effects:

[0031] (1) The present utility model provides a novel tendon suture instrument, including a clamping head, a sliding rod and a connecting rod. The clamping head is used both for clamping the tendon stump and for needle threading and suturing. The sliding rod is used to keep the clamping head in a parallel and aligned state during the clamping process, ensuring stable contact of the clamping head and reliable alignment of the two side needle threading holes;

[0032] (2) A buckle is provided on the connecting rod to lock the clamping state, facilitating the suture operation of the tendon stump.

[0033] (3) Symmetrically and evenly distributed conical spines are provided on the inner side of the clamping head for rapid clamping of the smooth tendon surface.

[0034] (4) Using the novel tendon suture instrument provided by the present utility model for tendon suture, the suture effect does not depend on the experience of the operator, can meet the early rehabilitation needs of patients, and has simple operation and high suture efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 FIG. is a schematic diagram of the overall structure of a novel tendon suture instrument according to Embodiment 1;

[0036] Figure 2 FIG. is a schematic diagram of the clamping head of a novel tendon suture instrument according to Embodiment 1 Figure 1 ;

[0037] Figure 3 FIG. is a schematic diagram of the clamping head of a novel tendon suture instrument according to Embodiment 1 Figure 2 ;

[0038] Figure 4 FIG. is a schematic diagram of the clamping head of a novel tendon suture instrument according to Embodiment 1 Figure 3 ;

[0039] Figure 5 FIG. is a schematic diagram of the clamping head of a novel tendon suture instrument according to Embodiment 1 Figure 4 ;

[0040] Figure 6 FIG. is a schematic diagram of the connecting rod and the sliding rod of a novel tendon suture instrument according to Embodiment 1 Figure 1 ;

[0041] Figure 7 FIG. is a schematic diagram of the connecting rod and the sliding rod of a novel tendon suture instrument according to Embodiment 1 Figure 2 ;

[0042] Figure 8 FIG. is a schematic diagram of the connecting rod and the sliding rod of a novel tendon suture instrument according to Embodiment 1 Figure 3 ;

[0043] Figure 9 FIG. is a schematic diagram of the connecting rod and the sliding rod of a novel tendon suture instrument according to Embodiment 1 Figure 4 ;

[0044] Figure 10 FIG. is a schematic diagram of the connecting rod and the sliding rod of a novel tendon suture instrument according to Embodiment 1 Figure 5 ;

[0045] Figure 11Schematic diagram of the locking structure of a novel tendon suture instrument in Embodiment 1 Figure 1 ;

[0046] Figure 12 Schematic diagram of the locking structure of a novel tendon suture instrument in Embodiment 1 Figure 2 ;

[0047] Figure 13 Schematic diagram of the card structure of a novel tendon suture instrument in Embodiment 1;

[0048] Figure 14 Schematic diagram of the first suture needle running route of a novel tendon suture instrument in Embodiment 1;

[0049] Figure 15 Schematic diagram of the second suture needle running route of a novel tendon suture instrument in Embodiment 1. Detailed implementation manners

[0050] The following further describes the present utility model in detail in conjunction with the drawings and embodiments. It should be noted that the following embodiments are intended to facilitate the understanding of the present utility model, and do not impose any limitations.

[0051] Embodiment 1. A novel tendon suture instrument

[0052] As Figure 1 shown, a novel tendon suture instrument includes a clamping head 1, a connecting rod 2, and a sliding rod 3.

[0053] As Figures 2 to 5 shown, the clamping head 1 includes a first clamping head 4 and a second clamping head 5. The two clamping heads are symmetrically arranged, and symmetrically and uniformly distributed conical spines 6 are arranged on their inner sides. The tip 7 of the conical spine 6 is a circular section 8, and the section 8 is perpendicular to the central axis of the conical spine 6. The design of the conical spine 6 can quickly and accurately clamp the smooth surface of the tendon suture stump, further realizing stable and reliable pulling of the tendon. When suturing the two stumps of the tendon, the tendon is liable to retract, resulting in difficulties in the suturing process. Moreover, there are important blood vessels and nerves near the tendon. If the clamped tendon stump is in the wrong position, it may damage the blood vessels and nerves, causing secondary harm to the patient. First needle passing holes 9 and second needle passing holes 10 are respectively arranged on both sides of the first clamping head 4 and the second clamping head 5 for needle passing and suturing. The first needle passing hole 9 is arranged on the first wiring channel 11, and the second needle passing hole 10 is arranged on the second wiring channel 12. A plurality of first wiring channels 11 and second wiring channels 12 are arranged in parallel, and the number of needle passing holes on each wiring channel is two or more. The first wiring channel 11 and the second wiring channel 12 are centrosymmetrically arranged. The clamping head 1 can make it more convenient and flexible to clamp the tendon, providing key technical means for the fixation, clamping, and suturing of tendon ruptures at different parts in clinical applications.

[0054] AsFigures 6 to 10 As shown, the connecting rod 2 includes a first connecting rod 13 and a second connecting rod 14. The first connecting rod 13 includes a first sliding groove 15, and the second connecting rod 14 includes a second sliding groove 16; the sliding rod 3 includes a first sliding rod 17 and a second sliding rod 18; one end of the first sliding groove 15 is connected to one end of the first sliding rod 17 through a fixing pin 19, and one end of the second sliding groove 16 is connected to one end of the second sliding rod 18 through a fixing pin 20; the first sliding rod 17 further includes a ball 21, and the second sliding rod also includes a ball 22; the first ball 21 slides in the second sliding groove 16, and the second ball 22 slides in the first sliding groove 15; the first sliding rod 17 and the second sliding rod 18 are cross-connected through a connecting pin 23, and a notch is provided at the cross-connection. The first sliding rod is provided with a notch 24, and the second sliding rod is provided with a notch 34; the first connecting rod 13 is connected to the first clamping head 4, and the second connecting rod 14 is connected to the second clamping head 5; the first connecting rod 13 and the first connecting rod 14 are respectively provided with a first scissor handle 30 and a second scissor handle 31. The setting of the scissor handles facilitates the application of force and makes the clamping effect better. When the ball 21 end of the first sliding rod 17 slides along the sliding groove 16 of the second connecting rod 14 away from the clamping head 1, the other end of the first sliding rod 17 rotates clockwise around the fixing pin 19; at the same time, the ball 22 of the second sliding rod 18 slides along the sliding groove 15 of the first connecting rod 13 away from the clamping head, and the other end of the second sliding rod 18 rotates counterclockwise around the fixing pin 20; at the same time, the first sliding rod 17 and the second sliding rod 18 rotate around the connecting pin 23; at this time, the first connecting rod 13 and the second connecting rod 14 slowly approach and abut, but still remain parallel and aligned. That is to say, the first clamping head 4 and the second clamping head 5 also slowly approach and abut, but still remain parallel and aligned, and the needle feeding holes 9 of the first clamping head 4 and the needle feeding holes 10 of the second clamping head 5 can be reliably aligned. On the contrary, when the ball 21 end of the first sliding rod 17 slides along the sliding groove 16 of the second connecting rod 14 towards the clamping head, the other end of the first sliding rod 17 rotates counterclockwise around the fixing pin 19; at the same time, the ball 22 of the second sliding rod 18 slides along the sliding groove 15 of the first connecting rod 13 towards the clamping head, and the other end of the second sliding rod 18 rotates clockwise around the fixing pin 20; at the same time, the first sliding rod 17 and the second sliding rod 18 rotate around the connecting pin 23; at this time, the distance between the first connecting rod 13 and the second connecting rod 14 gradually increases, but still remains parallel and aligned. That is to say, the distance between the first clamping head 4 and the second clamping head 5 also slowly increases, but still remains parallel and aligned.

[0055] As Figures 11 to 14 ​As shown, the first connecting rod 13 is connected to the latch 26 through the rotating shaft 25. The latch 26 further includes teeth 27 and a spring piece 28. The second connecting rod 14 is provided with a card 29, and the card 29 is arranged in a groove 35, and the groove 35 is arranged in a semi-circular arc structure. When the clamping head 1 is not in the clamping state, the latch 26 can rotate through the rotating shaft 25 to make the latch 26 in the unlocked state; when the clamping head 1 is in the clamping state, according to the degree of clamping, the latch 26 can rotate through the rotating shaft 25 to select which tooth 27 to lock to. The teeth 27 are designed with a unidirectional and consistent inclined structure and are evenly distributed, which is used for the one-way locking of the clamping head 1 in the clamping state, achieving the effect of being unable to be loosened reversely. If the latch 26 is already in the locked state, but it is found that the locked clamping state is not the most suitable, the latch 26 can be adjusted to continue to slide the teeth 27 on the card 29 through the spring piece 28 in the clamped state, so that the clamping degree is in the most suitable state. Through the combined action of the card 29 and the teeth 27 of the latch 26, the effective fixation of the clamping head 1 in the clamping state is realized, and the effect of maintaining this fixed state is achieved.

[0056] Hold the device, gradually move the clamping head 1 closer to one side of the tendon stump, move it to the ideal position, grip the first scissor handle 30 and the second scissor handle 31. The first sliding rod 17 slides through the ball 21 towards the end close to the clamping head in the second sliding groove 16, and the second sliding rod 18 slides through the ball 22 towards the end close to the clamping head in the first sliding groove 15. At this time, the first connecting rod 13 and the second connecting rod 14 gradually become parallel and aligned closer, and the first clamping head 4 and the second clamping head 5 also gradually become parallel and aligned closer. During the approaching process, the first needle-passing hole 9 and the second needle-passing hole 10 always maintain a parallel alignment state until the cone thorn 6 is inserted into the tendon tissue, and one side of the tendon stump is clamped and fixed. Adjust the latch 26 to lock to the corresponding tooth 27 to keep the current clamping state, start needle stitching. After the stitching is completed, loosen the latch 26, push open the first scissor handle 30 and the second scissor handle 31 by hand, and the first clamping head 4 and the second clamping head 5 of the clamping head 1 gradually disengage from the tendon tissue; use the same method to clamp and complete the stitching of the other stump of the tendon, and finally ligate and tie the two ends of the stitching thread.

[0057] As Figure 4 、 5, as shown in FIGS. 14 and 15, each needle passing hole of each wiring channel of the first wiring channel 11 and the second wiring channel 12 has a corresponding number. In this embodiment, taking the circular suture method as an example, both ends of the suture used are provided with suture needles, including a first suture needle 32 and a second suture needle 33. The first suture needle enters from A0, passes through the tendon cross-section and exits from the other side B0 (the solid line represents the needle passing route of the suture on the same side of the tendon, and this suture is visible on the surface of the tendon, and the dotted line represents the needle passing route of the suture through the tendon cross-section, and this suture is invisible), then enters from B1, passes through the tendon cross-section and exits from the other side B2. Further, it enters from C2 and exits from C1, enters from A3 and exits from A4, enters from C4 and exits from C3, enters from B5 and exits from B6, enters from C6 and exits from C5, enters from A7 and exits from A8. At this time, the first suture needle 32 returns to the same side of the starting position ( Figure 14 ); the second suture needle 33 enters from A1 and exits from A2, enters from C1 and exits from C2, enters from B3 and exits from B4, enters from C3 and exits from C4, enters from A5 and exits from A6, enters from C5 and exits from C6, enters from B7 and exits from B8 ( Figure 15 ). After the first suture needle 32 and the second suture needle 33 have completed all the needle passing operations, the first suture needle 32 and the second suture needle 33 are respectively located on both sides of the tendon fracture end. The same needle passing method is used to operate on the other end of the tendon fracture, and finally the two ends of the thread are ligated and tied.

[0058] Therefore, the present utility model designs an available instrument that can standardize the suture method, is simple to operate, and can efficiently suture tendons. The suture mechanics of this device is strong and can meet the early rehabilitation needs of patients. It solves the problems of tendon re-rupture and adhesion caused by long-term immobilization. The device-guided suture can standardize the suture, making the suture effect independent of the operator's experience, and enabling the operator to efficiently and standardly suture the ruptured tendon during the operation. This utility model has greatly promoted the progress of clinical tendon suture technology, improved the treatment efficiency of doctors for ruptured tendons and patient satisfaction, and meets the development needs of social large health. It is a tendon suture device with unique functions.

[0059] Although the present utility model is disclosed as above, the present utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the scope defined by the claims.

Claims

1. A novel tendon suture instrument, characterized in that, It includes a clamping head and a sliding rod. The clamping head is used for both clamping the tendon stump and guiding the needle for suture. The sliding rod is used to keep the clamping head in a parallel and aligned state during the clamping process, ensuring stable contact of the clamping head and reliable alignment of the needle guiding holes on both sides.

2. The novel tendon suture instrument according to claim 1, wherein The clamping head includes a first clamping head and a second clamping head, which are symmetrically arranged; the sliding rod includes a first sliding rod and a second sliding rod, and the first sliding rod and the second sliding rod are of equal length.

3. The novel tendon suture instrument according to claim 2, wherein, The first clamping head and the second clamping head are also provided with needle guiding holes.

4. The novel tendon suture instrument according to claim 3, wherein, It further includes a connecting rod, which includes a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are symmetrically arranged; the first connecting rod is connected to the first sliding rod through a fixing pin, and the second connecting rod is connected to the second sliding rod through a fixing pin.

5. The novel tendon suture instrument according to claim 4, characterized in that, Both the first connecting rod and the second connecting rod are provided with sliding grooves, and both the first sliding rod and the second sliding rod are provided with balls; the balls on the first sliding rod slide in the sliding groove of the second connecting rod, and the balls on the second sliding rod slide in the sliding groove of the first connecting rod; when the balls on the first sliding rod and the second sliding rod slide away from the clamping head end at the same time, the first connecting rod and the second connecting rod gradually become parallel and aligned and approach each other, and the first clamping head and the second clamping head also gradually become parallel and aligned and approach each other, so that the needle guiding holes of the first clamping head and the second clamping head always maintain a parallel and aligned state.

6. The novel tendon suture instrument according to claim 5, characterized in that, The first sliding rod and the second sliding rod are cross-connected through a connecting pin, and a notch is provided at the cross-connection.

7. The novel tendon suture instrument according to claim 6, wherein, Symmetrically and evenly distributed conical spikes are provided on the inner sides of the first clamping head and the second clamping head, and the tips of the conical spikes are circular cross-sections, and the cross-section is perpendicular to the center line of the conical spike.

8. The novel tendon suture instrument according to claim 7, wherein, It further includes a lock for locking the clamping state, and the lock includes teeth and a spring piece.

9. The novel tendon suture instrument according to claim 8, wherein, The second connecting rod is also provided with a card and a groove for fixing the teeth, and the card is arranged in the groove.

10. The novel tendon suture instrument according to claim 9, characterized in that, The first connecting rod and the second connecting rod further include scissor handles.

Images