Portable rapid stitching instrument for animal husbandry and veterinary surgeries

Abstract

The invention discloses a portable quick stitching instrument for animal husbandry veterinary surgery, which belongs to the technical field of veterinarians and comprises two parallel shells, a driving roller arranged in inner cavities of the shells and a driven roller in transmission with the driving roller. The driving roller and the driven roller are sleeved with a belt. A plurality of clamping rods which are close to one another are uniformly distributed on the belt; a driving bin is arranged between the two shells, and a driving assembly in transmission connection with the driving roller is arranged on the driving bin; a sewing assembly in transmission connection with the driving assembly is arranged below the driving assembly. According to the portable rapid stitching instrument for animal husbandry and veterinary surgery, through adjustable clamping, the portable rapid stitching instrument is adaptive to animal skins with different thicknesses and high elasticity and is matched with an accurate chain transmission stepping and stable nailing structure, skin stitching of dogs, cats and animal husbandry can be rapidly completed with one hand, the universality is high, operation is easy and convenient, and the stitching quality is stable.

Description

Technical Field

[0001] This invention relates to the field of veterinary technology, and more specifically to a portable rapid suturing device for animal husbandry and veterinary surgery. Background Technology

[0002] Dogs and cats are the animals with the largest number of surgeries performed in veterinary clinical practice worldwide, and the most frequent need for skin suturing. Routine surgeries such as spaying / neutering, trauma removal, and tumor excision are performed daily. Skin suturing is a high-frequency and critical finishing step in every surgery, directly determining surgical efficiency and wound healing quality. It is the most common and essential operation in veterinary clinical practice. However, the characteristics of canine and feline skin and the special nature of surgical scenarios make skin suturing in dogs and cats far more difficult than in humans.

[0003] The core challenge in suturing canine and feline skin lies in the vast differences in skin thickness, elasticity, and laxity. Cats and small dogs have thin, fragile skin that is easily torn, while medium and large dogs have thick, tough skin that is difficult to suture. The loose skin of dogs and cats is prone to wrinkling and displacement, and due to their dense fur, it is impossible to completely shave the hair during preparation, which can interfere with alignment. Furthermore, the surgical field is small, and there are significant individual differences between breeds, making the suturing technique extremely demanding.

[0004] Current human suturing machines are designed for human skin, which has a uniform thickness and low elasticity. They employ a combination of fixed needle depth and manual clamping for suturing. However, when applied to dogs and cats, whose body shapes are more complex, this method obstructs vision and increases operational difficulty. It easily tears the thin, fragile skin of dogs and cats, while struggling to penetrate thick, tough skin. It also fails to adapt to the elasticity and wrinkles of the skin, exhibiting numerous insurmountable limitations. The canine and feline veterinary medical market is mature, and there is a pressing need for efficient and safe instruments. Summary of the Invention

[0005] To address the problems in existing technologies regarding the significant individual differences in skin properties of dogs and cats, the inability to completely shave hair during skin preparation, and the difficulty of suturing, this invention proposes a portable, rapid suturing device for veterinary surgery that can adapt to skins of various thicknesses and elasticities and allows for controlled alignment. The technical solution of this invention is as follows: A portable rapid suturing device for animal and veterinary surgery includes two parallel housings, a drive roller disposed in the inner cavity of the housings, and a driven roller that drives the drive roller; belts are fitted on the drive rollers and the driven rollers; a plurality of clamping bars are evenly distributed on the belts and closely spaced together. An adjustment knob is provided at the position of the driven roller, which passes through the housing and is rotatably connected to the roller shaft of the driven roller; the housing at the position of the adjustment knob is provided with an adjustment groove for the roller shaft of the driven roller and the adjustment knob to move up and down. A drive chamber is provided between the two housings, and a drive assembly that is driven and connected to the drive roller is provided on the drive chamber; a stitching assembly that is driven and connected to the drive assembly is provided below the drive assembly.

[0006] Furthermore, the clamping bar includes a body and a head end fixed to the body; the body and the head end are fixedly connected by a neck, the head end and the neck are located inside the belt, and the diameter of both the body and the head end is larger than that of the neck.

[0007] Furthermore, multiple transmission holes are evenly distributed on both sides of the belt along the outer periphery; the transmission holes are located on the outer side of the clamping bar and extend into the inner side of the belt. The driving roller and the driven roller are respectively provided with multiple transmission teeth at both ends, and the transmission teeth are chain-driven with the transmission holes on the belt.

[0008] Furthermore, the outer end of the adjustment knob is provided with a locking block whose length is greater than the width of the adjustment groove and whose width is less than the width of the adjustment groove. When the locking block is rotated to a position where it is not parallel to the adjustment groove, the locking block is in an interference fit with the outer wall of the adjustment groove.

[0009] Furthermore, the drive assembly includes a drive block that extends through the drive compartment and moves up and down on the top of the drive compartment; Reset blocks are fixed on both sides of the drive block, and the drive chamber at each reset block position is provided with a reset cavity for the reset block to move up and down; a first spring connected to each reset block is provided in each reset cavity.

[0010] Furthermore, the two drive rollers inside the housing pass through the drive chamber and are connected to each other inside the drive chamber, and the connection end is provided with a ratchet; the ratchet is located below the drive block; the bottom of the drive block above the ratchet is provided with a drive groove for the ratchet to enter and exit, and the drive groove is provided with a pawl that cooperates with the ratchet.

[0011] Furthermore, the drive block is provided with symmetrical pressing arms on both sides of its bottom, and each pressing arm is rotatably connected to the drive block; The lower ends of the two pressure pin arms are respectively provided with guide plates that are fixedly connected to the lower edge of the side wall of the drive chamber. The diameter of the guide plates gradually decreases from top to bottom. The guide plates and the side wall of the drive chamber are respectively connected to form a complete surface, and the surface is in close contact with the adjacent pressure pin arms. The width of the lower end of the pressure pin arm matches the width of the suture pin.

[0012] Furthermore, a second spring is provided between the pin-pressing arms; the lower end of each pin-pressing arm is provided with a groove that matches the shoulder of the suture pin.

[0013] Furthermore, limiting plates are respectively provided at both ends of the drive roller and the driven roller near the belt.

[0014] Furthermore, the clamping rod is made of silicone or polyurethane; the top wall of the drive compartment is made of transparent material.

[0015] Based on the above technical solution, the technical effects that the present invention can achieve are as follows: 1. This invention uses a double parallel shell and a belt to drive evenly distributed and tightly packed clamping rods, which can continuously, uniformly and over a wide range clamp and fix the skin edge of the incision. It can smoothly flatten and align the loose, wrinkled and highly elastic skin of dogs and cats, fundamentally solving the problems of skin edge displacement, curling and misalignment when suturing with manual or ordinary instruments. It is more in line with the needs of veterinary clinical practice than single-point clamping and is suitable for the characteristics of loose and elastic skin of dogs and cats.

[0016] 2. The driven roller of this invention is equipped with an adjustment groove and an adjustment knob, which can adjust the height of the roller shaft up and down, thereby adjusting the height at which the skin is held. This allows for more suturing space to be exposed on the thick and tough skin of medium and large dogs at a higher height, while preventing excessive stretching of the thin and fragile skin of cats and small dogs at a lower height, thus controlling the suturing depth. One set of instruments is suitable for multiple types and thicknesses of skin, and its versatility is far superior to that of human skin suturing machines with fixed gaps.

[0017] 3. The locking block at the outer end of the adjustment knob of the present invention can be rotated to achieve interference locking with the outer wall of the adjustment groove. No tools are required and adjustment and locking can be completed with one hand. The structure is simple and reliable, and the operation is quick and does not delay the operation time. It can realize rapid operation during the operation and is suitable for the fast pace of veterinary surgery and the tight anesthesia time.

[0018] 4. The drive roller and driven roller of the present invention form a chain drive with the transmission teeth and the transmission holes on both sides of the belt. The transmission accuracy is high, there is no slippage or deviation, and the step distance of the clamping bar and sewing assembly is stable, so as to achieve uniformity of stitch distance and staple distance. The sewing quality is more regular than that of manual sewing.

[0019] 5. This invention is driven by a purely mechanical structure consisting of a first spring in the drive block and a ratchet pawl. It does not require batteries or electricity and can be used in operating rooms of pet hospitals as well as in the field and farms of livestock and veterinary animals where there is no electricity. It meets the core requirements of portability and rapid on-site suturing, and its applicable scenarios are far greater than those of electric suture devices.

[0020] 6. The pressure arm of the present invention, together with the guide plate that closes from top to bottom, can accurately guide and shape the suture staples. During the downward pressing of the drive block, the second spring between the pressure arms provides a stable pressing force, which can achieve stable pressing of the suture staples and meet the needs of veterinarians for rapid and efficient surgical closure. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main structure of the portable rapid suturing device for animal husbandry and veterinary surgery of the present invention; Figure 2 This is a bottom view schematic diagram of the portable rapid suturing device for animal husbandry and veterinary surgery of the present invention; Figure 3 This is a cross-sectional view (AA) of the portable rapid suturing device for animal husbandry and veterinary surgery of the present invention; Figure 4 This is a BB cross-sectional view of the portable rapid suturing device for animal husbandry and veterinary surgery of the present invention; Figure 5 This is a schematic diagram showing the up-and-down adjustment of the driven roller of the portable rapid suture device for animal and veterinary surgery of the present invention. Figure 6 This is a schematic diagram of the chain drive of the portable rapid suturing device for animal husbandry and veterinary surgery of the present invention; In the figure: 1-House; 1-House; 11-Drive roller; 13-Driven roller; 131-Adjusting groove; 132-Adjusting knob; 133-Locking block; 14-Clamping bar; 141-Neck; 142-Head end; 15-Belt; 151-Transmission hole; 152-Transmission gear; 2-Drive chamber; 21-Drive block; 211-Reset chamber; 212-Reset block; 213-First spring; 22-Ratchet; 221-Drive groove; 222-Pawl; 3-Sewing staple; 31-Pressure staple arm; 32-Second spring; 33-Guide plate. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] like Figure 1 and Figure 2 As shown, this embodiment provides a portable rapid suturing device for animal and veterinary surgery, including two parallel housings 1, a drive roller 11 disposed in the inner cavity of the housing 1, and a driven roller 13 that drives the drive roller 11. A belt 15 is fitted onto the drive roller 11 and the driven roller 13. Multiple clamping rods 14 are evenly distributed on the belt and are closely spaced together. An adjusting knob 132 is provided at the position of the driven roller 13, which passes through the housing 1 and is rotatably connected to the roller shaft of the driven roller 13. The housing 1 at the position of the adjusting knob 132 is provided with an adjusting groove 131 for the roller shaft of the driven roller 13 and the adjusting knob 132 to move up and down. A drive chamber 2 is provided between the two housings 1, and a drive assembly that is driven and connected to the drive roller 11 is provided on the drive chamber 2. A sewing assembly that is driven and connected to the drive assembly is provided below the drive assembly.

[0024] Preferred, such as Figure 1 and Figure 2 As shown, the clamping bar 14 includes a main body and a head end 142 fixed to the main body. The main body and the head end 142 are fixedly connected by a neck 141, which is located inside the belt 15, and the diameters of the main body and the head end 142 are both larger than that of the neck 141.

[0025] Preferred, such as Figure 2 and Figure 6 As shown, multiple transmission holes 151 are evenly distributed along the outer periphery on both sides of the belt 15. The transmission holes 151 are located on the outer side of the clamping bar 14 and extend into the inner side of the belt 15; The two ends of the drive roller 11 and the driven roller 13 are respectively provided with multiple transmission teeth 152, and the transmission teeth 152 are chain driven with the transmission holes 151 on the belt 15.

[0026] Preferred, such as Figure 2 and Figure 5 As shown, the outer end of the adjusting knob 132 is provided with a locking block 133 whose length is greater than the width of the adjusting groove 131 and whose width is less than the width of the adjusting groove 131. When the locking block 133 rotates to a position where it is not parallel to the adjusting groove 131, the locking block 133 is in an interference fit with the outer wall of the adjusting groove 131.

[0027] Preferred, such as Figure 3 and Figure 4 As shown, the drive assembly includes a drive block 21 that passes through the drive chamber 2 and moves up and down at the top of the drive chamber 2. Reset blocks 212 are fixed on both sides of the drive block 21, and the drive chamber 2 at the position of each reset block 212 is provided with a reset cavity 211 for the reset block 212 to move up and down. The reset cavity 211 is provided with a first spring 213 connected to each reset block 212.

[0028] Preferred, such as Figure 4 As shown, the drive rollers 11 inside the two housings 1 pass through the drive chamber 2 and are connected to each other inside the drive chamber 2, and the connecting end is provided with a ratchet 2. The ratchet 22 is located below the drive block 21. The bottom of the drive block 21 above the ratchet 22 is provided with a drive groove 221 for the ratchet 22 to enter and exit, and a pawl 222 that cooperates with the ratchet 22 is provided in the drive groove 221.

[0029] Preferred, such as Figure 3 and Figure 4 As shown, the bottom sides of the drive block 21 are symmetrically provided with pressing arms 31, and each pressing arm 31 is rotatably connected to the drive block 21. At the lower ends of the two pressure pin arms 31, guide plates 33 are respectively provided and fixedly connected to the lower edge of the side wall of the drive chamber 2. The diameter of the guide plates gradually decreases from top to bottom. The guide plates 33 are connected to the side wall of the drive chamber 2 to form a complete surface, and the surface is in close contact with the adjacent pressure pin arms 31. The width of the lower end of the pressure pin arm 31 matches the width of the suture pin.

[0030] Preferably, a second spring 32 is provided between the pressure nail arms 31; The lower end of the pressure arm 31 is provided with a groove that matches the shoulder of the suture nail 3.

[0031] Preferably, limiting plates 111 are provided at both ends of the drive roller 11 and the driven roller 13 near the belt 15 to limit the belt 15, prevent the belt 15 from deviating during rotation, and improve transmission accuracy.

[0032] Preferably, the clamps are made of silicone or polyurethane, which can increase the friction between the clamps and the stubble and / or skin, making the clamping more secure, and the elastic material can reduce the damage to the skin during the clamping process and avoid secondary injury; preferably, the top wall of the drive chamber is made of transparent material, so that the suturing status can be directly observed from above during operation.

[0033] Based on the above structure, the portable animal and veterinary surgical quick suture device of the present invention allows the veterinarian to adjust the knob 132 according to the skin condition of the dog or cat during suturing. This causes the driven roller 13 to move upward within the adjustment groove 131, thereby causing the driven roller 13 to move upward around the driving roller 11. This causes the belt 15 to tilt upward from the driving roller 11 towards the driven roller 13 until it is adapted to the skin thickness. Then, the locking block 133 at the outer end of the adjustment knob 132 is rotated so that it is no longer parallel to the adjustment groove 131. The driven roller is locked in place by interference fit, and the clamping height is fixed.

[0034] The entire instrument is placed on the aligned surgical skin incision, with the incision positioned between the two sets of clamps 14. Because the fur of dogs and cats is very fine, conventional shaving methods typically leave stubble 1-5 mm long. As the driving roller 11 and driven roller 13 rotate the clamps 14, the clamps 14 move downwards from the driving roller 11, creating a clamping action that holds the stubble and / or skin. Then, under the action of the upwardly inclined belt 15, the skin is moved upwards. The skin edges on both sides of the incision are continuously and flexibly clamped by the tightly and evenly distributed clamps 14 on both sides of the housing 1, which can flatten and align loose skin and expose more of thicker skin, thus improving the implantation effect.

[0035] After alignment, the veterinarian presses down on the drive block 21 at the top of the drive chamber 2. The drive block moves downward, and the reset blocks 212 on both sides compress the reset springs 213 within the reset chambers 211, accumulating rebound force. The pawls 222 at the bottom of the drive block 21 press down accordingly, actuating the ratchet 22 at the connecting end of the drive roller 11 to rotate unidirectionally at a fixed angle. The drive roller is driven to rotate synchronously by the ratchet. The transmission teeth 152 at both ends of the drive roller 11 engage with the transmission holes 151 on both sides of the belt 15 to form a chain drive, transmitting rotational power to the entire belt. The driven roller 13 follows suit, and the belt drives all the clamps 14 on it to move synchronously in one direction. After the clamps 14 reach the position of the driven roller 13, the ringing clamps 14 naturally separate, and the clamped hair and / or skin leaves the clamps 14 and falls off by itself.

[0036] As the drive block 21 presses down, the pin-pressing arms 31 on both sides of the bottom move downwards in sync. The pin-pressing arms slide along the guide plate 33, whose diameter gradually decreases from top to bottom. While overcoming the elastic force of the second spring 32, they are forced to retract inward by the guide plate. The groove at the lower end of the pin-pressing arm matches the shoulder of the suture nail 3, pressing the suture nail down into the skin and pressing, bending, and shaping it to close the skin.

[0037] After the finger is released, the reset spring 213 in the reset cavity 211 rebounds, lifting the reset block 212 and causing the drive block 21 to return to its initial position. As the drive block 21 resets upward, the pawl 222 disengages from the ratchet 22, and the ratchet, drive roller, and belt stop rotating. The pressure arm 31 is lifted along with the drive block and, under the rebound of the second spring 32, opens outward along the guide plate 33, disengaging from the nailed skin and achieving reset. The belt 15 and clamp 14 have completed one precise step, and the section of the area to be sutured below the incision moves to the nailing position. The suture nail 3 to be nailed enters below the pressure arm 31 under the action of the rear pusher device, waiting to be nailed in.

[0038] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A portable rapid suturing device for veterinary surgery, characterized in that, It includes two parallel housings (1), a drive roller (11) located in the inner cavity of the housing (1), and a driven roller (13) that drives the drive roller (11); belts (15) are fitted on the drive roller (11) and the driven roller (13); a plurality of clamps (14) are evenly distributed on the belt. An adjustment knob (132) is provided at the position of the driven roller (13) through the housing (1) and rotatably connected to the roller shaft of the driven roller (13); an adjustment groove (131) is provided on the housing (1) at the position of the adjustment knob (132) for the roller shaft of the driven roller (13) and the adjustment knob (132) to move up and down. A drive chamber (2) is provided between the two housings (1), and a drive assembly that is connected to the drive roller (11) is provided on the drive chamber (2); a stitching assembly that is connected to the drive assembly is provided below the drive assembly.

2. The portable rapid suturing device for animal husbandry and veterinary surgery according to claim 1, characterized in that, The clamp (14) includes a body and a head end (142) fixed to the body; the body and the head end (142) are fixedly connected by a neck (141), the head end (142) and the neck (141) are located inside the belt (15), and the diameter of the body and the head end (142) is larger than that of the neck (141).

3. The portable rapid suturing device for animal husbandry and veterinary surgery according to claim 1, characterized in that, Multiple transmission holes (151) are evenly distributed on both sides of the belt (15) along the outer periphery; the transmission holes (151) are located on the outside of the clamp (14) and penetrate into the inside of the belt (15). The driving roller (11) and the driven roller (13) are respectively provided with multiple transmission teeth (152) at both ends, and the transmission teeth (152) are chain-driven with the transmission holes (151) on the belt (15).

4. The portable rapid suturing device for veterinary surgery according to claim 1, characterized in that, The outer end of the adjustment knob (132) is provided with a locking block (133) whose length is greater than the width of the adjustment groove (131) and whose width is less than the width of the adjustment groove (131). When the locking block (133) rotates to a position where it is not parallel to the adjustment groove (131), the locking block (133) is in interference fit with the outer wall of the adjustment groove (131).

5. The portable rapid suturing device for animal husbandry and veterinary surgery according to claim 1, characterized in that, The drive assembly includes a drive block (21) that passes through the drive compartment (2) and moves up and down on the top of the drive compartment (2). The drive block (21) has a reset block (212) fixed on both sides. The drive chamber (2) at the position of each reset block (212) is provided with a reset cavity (211) for the reset block (212) to move up and down. The reset cavity (211) is provided with a first spring (213) connected to each reset block (212).

6. The portable rapid suturing device for veterinary surgery according to claim 5, characterized in that, The two drive rollers (11) inside the housing (1) pass through the drive chamber (2) and are connected to each other inside the drive chamber (2), and the connection end is provided with a ratchet (2); the ratchet (22) is located below the drive block (21); the bottom of the drive block (21) above the ratchet (22) is provided with a drive groove (221) for the ratchet (22) to enter and exit, and the drive groove (221) is provided with a pawl (222) that cooperates with the ratchet (22).

7. The portable rapid suturing device for veterinary surgery according to claim 5, characterized in that, The drive block (21) has symmetrically arranged pressing arms (31) on both sides of its bottom, and each pressing arm (31) is rotatably connected to the drive block (21); The lower ends of the two pressure pin arms (31) are respectively provided with guide plates (33) that are fixedly connected to the lower edge of the side wall of the drive chamber (2). The diameter of the guide plates gradually decreases from top to bottom. The guide plates (33) and the side walls of the drive chamber (2) are respectively connected to form a complete surface, and the surface is in close contact with the adjacent pressure pin arms (31). The width of the lower end of the pressure pin arm (31) matches the width of the suture pin.

8. The portable rapid suturing device for animal husbandry and veterinary surgery according to claim 7, characterized in that, A second spring (32) is provided between the pressure nail arms (31); The lower end of each of the pressure pin arms (31) is provided with a groove that matches the shoulder of the suture pin.

9. The portable rapid suturing device for animal husbandry and veterinary surgery according to claim 1, characterized in that, Limiting plates (111) are respectively provided at both ends of the drive roller (11) and the driven roller (13) near the belt (15).

10. The portable rapid suturing device for veterinary surgery according to claim 1, characterized in that, The clamping rods are made of silicone or polyurethane; the top wall of the drive compartment is made of transparent material.

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