CN111803183A

CN111803183A - Roller skin-picking knife for burn patients

Info

Publication number: CN111803183A
Application number: CN202010606258.1A
Authority: CN
Inventors: 张守信
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2020-10-23

Abstract

The invention belongs to the technical field of medical instruments, and discloses a roller skinning knife for a burn patient, which comprises a fixing frame and an eccentric fixing support connected inside the fixing frame, wherein a knife holder is installed inside the eccentric fixing support, a press roller is fixedly connected to one side, close to the knife holder, inside the eccentric fixing support through a support, a blade is connected to one side, close to the press roller, of the knife holder, and a driving device is installed on one side, close to the eccentric fixing support, inside the fixing frame; the driving device comprises two grooves and a movable shaft, wherein the two grooves are respectively positioned on two sides of the inner wall of the fixed frame, and the eccentric fixed support is stably and reliably moved by matching structures such as a fixed block, a driving wheel, a screw rod, a screw sleeve and the like in the driving device, so that the knife holder is uniformly stressed, the pushing pressure degree is controlled, the knife blade can be stably moved and cut, the safety factor is increased, the operation is simple and labor-saving, and the skin taking efficiency is improved.

Description

Roller skin-picking knife for burn patients

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a roller skin taking knife for a burn patient.

Background

The medical instrument refers to instruments, equipment, appliances, in-vitro diagnostic reagents, calibrators, materials and other similar or related articles which are directly or indirectly used for a human body, the existing burn department operation needs to cut the skin of a burn part, and simultaneously needs to cut autologous skin or allogeneic skin to transplant the autologous skin or the allogeneic skin to the defective skin, the roller dermatome is a common instrument in the burn operation process, is mainly applied to cutting of a blade thick skin, scabbing and debridement of deep burn wounds and granulation wounds and the like, and is widely used.

The skin sword is got to current burn patient roller has some problems at the in-process that uses, for example, at the in-process that promotes to get skin sword cutting skin, because be difficult to control and push away the pressure degree, comparatively labouring when not only bulldozing, and the skew takes place easily in the thrust direction, leads to getting the skin sword and removes unstably, easily makes mistakes, gets the skin sword and surely gets the thickness nonconformity that different cutting edge positions got into skin when getting the skin, gets the skin unsatisfactory, efficiency is poor, and factor of safety is low.

Disclosure of Invention

In view of this, the present invention provides a roller dermatome for burn patients, so as to effectively solve the problems mentioned in the background art, so that the dermatome moves stably and reliably, is not easy to shift, and improves the safety factor.

In order to achieve the purpose, the invention provides the following technical scheme: a roller skinning knife for burn patients comprises a fixing frame and an eccentric fixing support connected to the inside of the fixing frame, wherein a knife holder is installed inside the eccentric fixing support, a pressing roller is fixedly connected to one side, close to the knife holder, of the inside of the eccentric fixing support through a support, a blade is connected to one side, close to the pressing roller, of the knife holder, and a driving device is installed on one side, close to the eccentric fixing support, of the inside of the fixing frame;

drive arrangement includes two recesses and loose axle, two of them the recess is located the inner wall both sides of fixed frame respectively, the loose axle runs through one side of fixed frame, and the loose axle extends to the outside one end of fixed frame and installs the fixed block, one side that the other end of loose axle is close to the blade holder is fixed with the drive wheel, two the inside of recess all has the lead screw, two through bearing swing joint the one end of lead screw is all installed from the driving wheel, and the outer wall of two lead screws is close to all overlaps from one side of driving wheel and is equipped with swivel nut, two one side of swivel nut is connected with the both ends of eccentric fixed bolster respectively, two all install the belt between the outer wall from driving wheel and drive wheel.

Preferably, the side walls of the two thread sleeves are movably connected with rotating shafts through bearings, gears are mounted on the outer walls of the two rotating shafts, and racks meshed with the gears are connected to one sides, close to the thread sleeves, of the inner walls of the grooves.

Preferably, fixed knot constructs is all installed to the both sides of blade holder, fixed knot constructs including the chamber groove, the chamber groove is located the position department between the blade holder is inside and the outside, and the internally mounted in chamber groove has the locating piece, it has the locating lever to run through in the middle of the inside of locating piece, the outer wall cover of locating lever is equipped with the second spring, and the locating lever keeps away from the one end of locating piece and extends to the inside of blade holder, the both sides of blade holder all close soon through the screw thread and are connected with fixed knob, the one end of fixed knob extends to the inside in chamber groove, the both sides of blade all seted up with locating lever assorted constant head tank.

Preferably, the side walls of the tool apron and the blade are provided with clamping grooves, clamping blocks are arranged in the clamping grooves, and a first spring is connected between the clamping blocks and one end of the clamping groove extending to the outside of the clamping groove.

Preferably, one of them the slider is installed to the outside one end that the pivot extends to fixed frame, and the spout has been seted up to the junction of fixed frame and slider, one side that the outer wall of fixed frame is close to the spout is connected with the dipperstick.

Preferably, the inner wall of the positioning groove is provided with a backing plate, and the outer wall of the backing plate is provided with an anti-slip groove.

Preferably, one end of the second spring is connected with the positioning block, and the other end of the second spring is connected with the inner wall of the cavity groove.

Preferably, the fixture block is of an L-shaped structure, and the interval between two adjacent first springs is equal.

Preferably, the outer wall of the fixed block is provided with a rubber sleeve, and the outer wall of the rubber sleeve is provided with a bulge.

Preferably, the outer wall of the compression roller is provided with a pressing protection pad, and one end of the movable shaft, which is far away from the fixed block, is fixed with a limiting block.

Compared with the prior art, the invention has the beneficial effects that:

(1) in the invention, the driving device is matched with structures such as a fixing block, a driving wheel, a screw rod, a screw sleeve and the like, so that the eccentric fixing support moves stably and reliably, the tool apron is stressed uniformly, the pushing pressure degree is controlled conveniently, the blade can move and cut stably, the safety factor is increased, the operation is simple and labor-saving, and the peeling efficiency is improved.

(2) To the removal part of above-mentioned blade, the cooperation is equipped with gear and rack for the swivel nut is more reliable and more stable when moving on the lead screw, thereby makes the blade remove more stably, has further prevented that the blade from taking place to rock the skew, and can the displacement of accurate control blade, has prevented to cut skin length great deviation to appear, has improved the result of use of device.

(3) To the length of getting skin of above-mentioned control blade, drive the slider through the swivel nut and remove in the spout for the removal distance accessible dipperstick of slider is observed, thereby can in time know the cutting length of blade, so that the size of getting skin is got in the control, and the skin of having prevented to shell when performing the operation is too much, has improved the accuracy when getting skin greatly.

(4) To the stability of above-mentioned blade cutting skin, fixed knot constructs the cooperation and is equipped with fixed knob, locating lever and constant head tank isotructure, can be with the blade firmly fix in the blade holder to this makes the difficult emergence skew when the blade removes cutting skin, thereby has reduced the failure rate when getting the skin, has further improved factor of safety.

(5) The connecting part of the blade and the cutter holder is provided with the clamping block, the first spring and the clamping groove in a matched mode, so that the blade is better fixed on the cutter holder, the blade is more stable when being connected with the cutter holder, and the stability of the cutter is further improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 1;

FIG. 4 is a schematic view of the tool holder of the present invention in connection with an insert;

FIG. 5 is an enlarged view of portion B of FIG. 2;

in the figure: 1. a fixing frame; 2. a chute; 3. a slider; 4. measuring a scale; 5. a drive device; 51. a driven wheel; 52. a movable shaft; 53. a fixed block; 54. a drive wheel; 55. a belt; 56. a screw rod; 57. a threaded sleeve; 58. a groove; 6. an eccentric fixed bracket; 7. a tool apron; 8. a blade; 9. a compression roller; 10. a clamping block; 11. a fixed structure; 111. positioning a rod; 112. a cavity groove; 113. fixing the knob; 114. positioning blocks; 115. a second spring; 116. positioning a groove; 12. a card slot; 13. a gear; 14. a rack; 15. a rotating shaft; 16. a first spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides the following technical solutions: a roller skinning knife for burn patients comprises a fixed frame 1 and an eccentric fixed support 6 connected to the inside of the fixed frame 1, wherein a knife holder 7 is installed inside the eccentric fixed support 6, a pressing roller 9 is fixedly connected to one side, close to the knife holder 7, of the inside of the eccentric fixed support 6 through a support, a blade 8 is connected to one side, close to the pressing roller 9, of the knife holder 7, and a driving device 5 is installed on one side, close to the eccentric fixed support 6, of the inside of the fixed frame 1;

the driving device 5 comprises two grooves 58 and a movable shaft 52, wherein the two grooves 58 are respectively positioned on two sides of the inner wall of the fixed frame 1, the movable shaft 52 penetrates through one side of the fixed frame 1, a fixed block 53 is installed at one end of the movable shaft 52 extending to the outside of the fixed frame 1, a driving wheel 54 is fixed at one side of the other end of the movable shaft 52 close to the tool apron 7, lead screws 56 are movably connected inside the two grooves 58 through bearings, driven wheels 51 are installed at one ends of the two lead screws 56, screw sleeves 57 are sleeved at one sides of the outer walls of the two lead screws 56 close to the driven wheels 51, one sides of the two screw sleeves 57 are respectively connected with two ends of the eccentric fixed support 6, belts 55 are installed between the two driven wheels 51 and the outer walls of the driving wheel 54, when in use, medical personnel can rotate the fixed block 53 to drive the driving wheel 54 to rotate through the movable shaft 52, thereby make two lead screws 56 rotatory simultaneously, later make two swivel nuts 57 drive eccentric fixed bolster 6 simultaneously and remove under the drive of screw thread to make blade holder 7 atress even, so that control pushing force intensity, make the removal cutting that blade 8 can be stable, increased factor of safety, and easy operation is laborsaving, has improved and has got skin efficiency.

Further, the lateral walls of the two screw sleeves 57 are respectively and movably connected with the rotating shaft 15 through the bearing, the gears 13 are respectively installed on the outer walls of the two rotating shafts 15, one sides, close to the screw sleeves 57, of the inner walls of the two grooves 58 are respectively connected with the racks 14 meshed with the gears 13, when the screw sleeves 57 drive the eccentric fixing supports 6 to move, the gears 13 on the rotating shafts 15 can move on the racks 14, the gears 13 are meshed with the saw teeth on the racks 14, the screw sleeves 57 are enabled to be more stable and reliable when moving on the screw rods 56, the blade 8 is further prevented from shaking and shifting, the moving distance of the blade 8 can be accurately controlled, the phenomenon that the skin cutting length is greatly deviated is avoided, and the using effect of the device is improved.

Further, the fixing structures 11 are mounted on both sides of the tool holder 7, each fixing structure 11 includes a cavity groove 112, the cavity groove 112 is located at a position between the inside and the outside of the tool holder 7, a positioning block 114 is mounted inside the cavity groove 112, a positioning rod 111 penetrates through the middle inside of the positioning block 114, a second spring 115 is sleeved on the outer wall of the positioning rod 111, one end of the positioning rod 111, which is far away from the positioning block 114, extends into the tool holder 7, fixing knobs 113 are screwed on both sides of the tool holder 7 through threads, one end of the fixing knob 113 extends into the cavity groove 112, positioning grooves 116 matched with the positioning rod 111 are formed on both sides of the blade 8, the fixing knobs 113 are rotated to enter the cavity groove 112 and abut against the positioning rod 111, then the positioning rod 111 drives the positioning block 114 to slide, so that the positioning block 114 presses the second spring 115, then the positioning rod 111 penetrates into the tool holder 7 and enters the positioning, therefore, the blade 8 can be quickly and stably arranged in the blade holder 7, so that the blade 8 is not easy to deviate when moving and cutting the skin, the failure rate is reduced, and the safety factor is further improved.

Further, draw-in groove 12 has all been seted up with the lateral wall of blade holder 7 and blade 8, fixture block 10 is all installed to the inside of two draw-in grooves 12, two fixture blocks 10 extend to and are connected with first spring 16 between the outside one end of draw-in groove 12, to above-mentioned blade holder 7 and blade 8, make first spring 16 atress tensile through two fixture blocks 10 of pulling, then insert two fixture blocks 10 respectively about in two draw-in grooves 12, make two fixture blocks 10 have the trend of being close to each other under first spring 16's elastic action simultaneously, thereby make the better fixing of blade 8 on blade holder 7, more stable when making blade 8 be connected with blade holder 7 with this, and the stability is improved.

Further, slider 3 is installed to the one end that one of them pivot 15 extends to fixed frame 1 outside, and spout 2 has been seted up with slider 3's junction to fixed frame 1, one side that the outer wall of fixed frame 1 is close to spout 2 is connected with dipperstick 4, the in-process of cutting skin is removed at blade 8, swivel nut 57 accessible pivot 15 drives slider 3 and removes in spout 2, then medical personnel's accessible dipperstick 4 observation slider 3's displacement, thereby timely understanding blade 8's cutting length, so that the control size of skinning, the skin of skinning when having prevented the operation is too much, the accuracy of skinning has been improved.

Specifically, the inner wall of the positioning groove 116 is provided with a backing plate, the backing plate has a stabilizing effect, and the outer wall of the backing plate is provided with an anti-slip groove.

Specifically, one end of the second spring 115 is connected to the positioning block 114, the second spring 115 has a return-spring effect, so that the positioning rod 111 automatically springs out of the positioning slot 116, thereby facilitating the removal of the blade 8, and the other end of the second spring 115 is connected to the inner wall of the cavity groove 112.

Specifically, the latch 10 has an L-shaped structure, and the interval between two adjacent first springs 16 is equal.

Specifically, the outer wall of the fixed block 53 is provided with a rubber sleeve, the rubber sleeve has an anti-slip effect, and the outer wall of the rubber sleeve is provided with a protrusion.

Specifically, a pressing pad is mounted on the outer wall of the pressing roller 9, the leather sheet can be kept in a tight state through the pressing roller 9, the leather sheet can be protected by the pressing pad, excessive extrusion is prevented, and a limiting block is fixed at one end of the movable shaft 52, which is far away from the fixed block 53.

The working principle and the using process of the invention are as follows: when the invention is used, the fixing frame 1 can be fixed at the skin taking position, the blade 8 is inserted into the knife holder 7, the fixing knob 113 is rotated to enter the cavity groove 112 and abut against the positioning rod 111, then the positioning rod 111 drives the positioning block 114 to slide, the positioning block 114 extrudes the second spring 115, then the positioning rod 111 penetrates into the knife holder 7 and enters the positioning groove 116, so that the blade 8 can be rapidly and stably fixed in the knife holder 7, meanwhile, the first spring 16 is stressed and stretched by pulling the two clamping blocks 10, then the two clamping blocks 10 are respectively inserted into the upper clamping groove 12 and the lower clamping groove 12, the two clamping blocks 10 have the trend of mutually approaching under the elastic action of the first spring 16, so that the blade 8 is better fixed on the knife holder 7, the blade 8 is more stable when being connected with the knife holder 7, further the blade 8 is not easy to deviate when moving and cutting the skin, and the failure rate is reduced, further improving the safety factor, when in use, the medical staff can rotate the fixed block 53 to drive the driving wheel 54 to rotate through the movable shaft 52, then the driving wheel 54 drives the two driven wheels 51 to rotate through the belt 55 simultaneously, thereby the two lead screws 56 rotate simultaneously, then the two thread sleeves 57 drive the eccentric fixing support 6 to move under the driving of the screw thread, thereby the tool apron 7 is stressed uniformly so as to control the pushing pressure degree, the blade 8 can move and cut stably, the large deviation of the cutting length is prevented, the operation is simple and labor-saving, the peeling efficiency is improved, meanwhile, the gear 13 on the rotating shaft 15 can move on the rack 14, the gear 13 is meshed with the saw teeth on the rack 14, thereby the thread sleeves 57 are more stable and reliable when moving on the lead screws 56, the blade 8 is further prevented from shaking and offsetting, and the moving distance of the blade 8 can be controlled accurately, increased factor of safety, in addition, remove the in-process of cutting skin at blade 8, swivel nut 57 accessible pivot 15 drives slider 3 and removes in spout 2, and then medical personnel's accessible dipperstick 4 observes slider 3's displacement to timely understanding blade 8's cutting length, so that the size of skinning is got in the control, the skin of shelling when having prevented the operation is too much, has improved the accuracy of skinning.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a burn patient is with roller skinning knife, includes fixed frame (1) and connects in fixed frame (1) inside eccentric fixed bolster (6), the internally mounted of eccentric fixed bolster (6) has blade holder (7), and one side that the inside of eccentric fixed bolster (6) is close to blade holder (7) is through support fixedly connected with compression roller (9), one side that blade holder (7) are close to compression roller (9) is connected with blade (8), its characterized in that: a driving device (5) is arranged on one side, close to the eccentric fixed support (6), of the inside of the fixed frame (1);

the driving device (5) comprises two grooves (58) and a movable shaft (52), wherein the two grooves (58) are respectively positioned at two sides of the inner wall of the fixed frame (1), the movable shaft (52) penetrates through one side of the fixed frame (1), and a fixed block (53) is arranged at one end of the movable shaft (52) extending to the outside of the fixed frame (1), a driving wheel (54) is fixed at one side of the other end of the movable shaft (52) close to the tool apron (7), the insides of the two grooves (58) are movably connected with screw rods (56) through bearings, one end of each screw rod (56) is provided with a driven wheel (51), and threaded sleeves (57) are sleeved on one sides, close to the driven wheels (51), of the outer walls of the two screw rods (56), one sides of the two threaded sleeves (57) are respectively connected with two ends of the eccentric fixing support (6), and belts (55) are mounted between the outer walls of the driven wheels (51) and the driving wheels (54).

2. The roll skinning knife for burn patients according to claim 1 is characterized in that: two the lateral wall of swivel nut (57) all has pivot (15) through bearing swing joint, and gear (13) are all installed to the outer wall of two pivot (15), two one side that the inner wall of recess (58) is close to swivel nut (57) all is connected with rack (14) with gear (13) looks meshing.

3. The roll skinning knife for burn patients according to claim 1 is characterized in that: fixed knot constructs (11) are all installed to the both sides of blade holder (7), fixed knot constructs (11) including chamber groove (112), chamber groove (112) are located the position department between blade holder (7) inside and the outside, and the internally mounted of chamber groove (112) has locating piece (114), it has locating lever (111) to run through in the middle of the inside of locating piece (114), the outer wall cover of locating lever (111) is equipped with second spring (115), and locating lever (111) keep away from the one end of locating piece (114) and extend to the inside of blade holder (7), the both sides of blade holder (7) all are connected with fixed knob (113) through the screw thread closure, the one end of fixed knob (113) extends to the inside of chamber groove (112), constant head tank (116) with locating lever (111) assorted has all been seted up to the both sides of blade (8).

4. The roll skinning knife for burn patients according to claim 1 is characterized in that: clamping grooves (12) are formed in the side walls of the tool apron (7) and the blade (8), clamping blocks (10) are installed inside the clamping grooves (12), and a first spring (16) is connected between one ends, extending to the outside of the clamping grooves (12), of the clamping blocks (10).

5. The roll skinning knife for burn patients according to claim 2, characterized in that: one of them pivot (15) extend to fixed frame (1) outside one end and install slider (3), and the junction of fixed frame (1) and slider (3) has seted up spout (2), one side that the outer wall of fixed frame (1) is close to spout (2) is connected with dipperstick (4).

6. The roll skinning knife for burn patients according to claim 3, characterized in that: the inner wall of the positioning groove (116) is provided with a backing plate, and the outer wall of the backing plate is provided with an anti-slip groove.

7. The roll skinning knife for burn patients according to claim 3, characterized in that: one end of the second spring (115) is connected with the positioning block (114), and the other end of the second spring (115) is connected with the inner wall of the cavity groove (112).

8. The roller skinning knife for burn patients according to claim 4, characterized in that: the fixture blocks (10) are of L-shaped structures, and the intervals of two adjacent first springs (16) are equal.

9. The roll skinning knife for burn patients according to claim 1 is characterized in that: the outer wall of fixed block (53) is installed the rubber sleeve, and the outer wall of rubber sleeve is provided with the arch.

10. The roll skinning knife for burn patients according to claim 1 is characterized in that: the outer wall of the compression roller (9) is provided with a pressing protection pad, and one end of the movable shaft (52) far away from the fixed block (53) is fixed with a limiting block.