CN111317520A

CN111317520A - Wound traction device

Info

Publication number: CN111317520A
Application number: CN202010143142.9A
Authority: CN
Inventors: 王亚玲; 何海燕
Original assignee: Chinese Peoples Liberation Army Army Specialized Medical Center
Current assignee: Chinese Peoples Liberation Army Army Specialized Medical Center
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2020-06-23

Abstract

The invention discloses a wound traction device, which comprises a base, a driving assembly and a traction assembly, wherein the supporting frame comprises a bottom plate, a supporting frame and a movable plate, the movable plate is arranged on the bottom plate through the supporting frame, and the height and the angle of the movable plate relative to the bottom plate can be adjusted; the driving assembly comprises a driving source and a push rod, the push rod is arranged on the driving source, and the driving source can drive the push rod to move up and down; the drawing assembly is arranged on the movable plate and connected with the push rod to drive the drawing assembly to be unfolded or folded. This wound tractive device not only practices thrift manpower and space, and it is effectual to carry moreover to carry to guarantee the continuity of operation.

Description

Wound traction device

Technical Field

The invention relates to a medical apparatus, in particular to a wound traction device.

Background

Currently, in surgical operation, a certain range of opening of a wound is often required for the convenience of operation or the convenience of visual field. The method generally adopted in the current clinical operation is as follows: at least two assistants are required to clamp the skin at the wound edge by tissue forceps or fingers and to spread the skin at the wound and lift it up simultaneously to achieve sufficient field of view exposure. However, this operation has the following drawbacks: 1. an assistant is added to assist in traction, so that the labor cost is increased; 2. because the operation time is determined by the state of an illness, the operation time is different, when the operation time is too long, the assistant pulls for a long time, the arm or the finger of the assistant is exhausted, the pulled skin is shaken and even slips, the operation is forced to be interrupted, and the operation process and the safety are influenced.

Disclosure of Invention

Aiming at the defects in the prior art, the technical problem to be solved by the invention is to provide the wound traction device, which not only saves labor and space, but also has good traction effect so as to ensure the continuity of the operation.

In order to achieve the purpose, the invention is realized by the following technical scheme: a wound-stretching device comprising:

the base comprises a bottom plate, a support frame and a movable plate, the movable plate is arranged on the bottom plate through the support frame and is parallel to the bottom plate, the height of the movable plate relative to the bottom plate can be adjusted, and the movable plate can horizontally rotate;

the driving assembly comprises a driving source and a push rod, the push rod is arranged on the driving source, and the driving source can drive the push rod to move up and down; and

the drawing assembly is arranged on the movable plate and connected with the push rod, and the push rod can drive the drawing assembly to be unfolded or folded.

Furthermore, the support frame comprises a sleeve, a limiting block and a support rod; the sleeve is vertically arranged on the bottom plate; one end of the support rod is inserted into the sleeve and can slide up and down in the sleeve, and the other end of the support rod is arranged on the bottom surface of the movable plate; the side wall of the sleeve is provided with a plurality of spaced jacks along the axial direction, and the jacks communicate the inner cavity of the sleeve with the outside; the support rod is radially provided with a mounting hole, and the limiting block comprises an inserting tongue and a first elastic piece; one end of the first elastic piece is connected with the bottom of the mounting hole, and the inserting tongue can be inserted into the mounting hole in a sliding manner; one end of the inserting tongue is connected with the other end of the first elastic piece; the other end of the inserting tongue penetrates through the inserting hole in the sleeve and is exposed out of the inserting hole.

Further, a chassis is arranged at the end part, far away from the movable plate, of the sleeve; the bottom plate is provided with a T-shaped shaft hole, and the chassis can be rotatably inserted into the large hole; the sleeve can be rotatably inserted into the small hole of the shaft hole.

Further, a second elastic piece is arranged between the chassis and the bottom of the shaft hole; the side wall of the chassis is provided with a plurality of flanges at intervals along the circumferential direction, the inner wall of the shaft hole is provided with a plurality of grooves, and the flanges can be clamped in the grooves.

Further, the pulling assembly comprises a support rod, a cantilever plate, a pulling plate and a connecting rod; the support rod is vertically arranged on one side of the movable plate, which is far away from the bottom plate; the cantilever plate is arranged at the top end of the support rod, is parallel to the movable plate and extends to the outer side of the movable plate; the end part of the cantilever plate, which is far away from the support rod, is provided with a through hole; the push rod can be inserted into the through hole in a sliding manner; the two pulling plates are oppositely arranged, the end parts of the two pulling plates close to the cantilever plate are hinged with each other and are abutted against the end part of the push rod close to the movable plate; two connecting rods are arranged, one ends of the two connecting rods are hinged with the end part of the cantilever plate facing the movable plate, and the hinged points are positioned on two sides of the through hole; the other ends of the two connecting rods are respectively hinged with the middle parts of the two pulling plates.

Furthermore, hook bodies are arranged at the end parts, far away from the cantilever plate, of the two pulling plates.

Further, the end of the hook body is provided with a soft layer.

Further, the tractive subassembly is still including the piece that resets, the piece that resets has elasticity, two all seted up on the driving plate opposite face and avoided the groove, the piece that resets is located avoid the inslot, just the both ends of the piece that resets respectively with two the lateral wall of avoiding the groove links to each other.

Further, the driving source includes rotary power source, screw rod, push pedal and ends the bull stick, rotary power source sets up on the movable plate, the screw rod sets up rotary power source's power take off end, the push pedal is connected on the push rod, and with the bottom plate is parallel, the screw has been seted up in the push pedal, the screw rod alternates in the screw hole and with screw threaded connection, it is in to end the vertical setting of bull stick on the bottom plate, and extend to the push pedal, and with push pedal sliding connection.

The invention has the beneficial effects that:

the wound traction device comprises a base, a driving assembly and a traction assembly. The movable plate is arranged on the bottom plate through the support frame, the height of the movable plate relative to the bottom plate can be adjusted, and the pulling assembly can be adjusted to the required height; and the movable plate can horizontally rotate, and simultaneously the movable plate is rotated, so that the traction assembly can be aligned to the wound, and the positioning of the traction assembly is facilitated. The pulling assembly is driven by the driving assembly to drive the pulling assembly to expand or contract. When the traction assembly is unfolded, the wound can be pulled and lifted, so that the requirements of facilitating operation and exposing the visual field are met. The whole operation process is simple and flexible; meanwhile, manual drawing is not needed, so that manpower and space are saved, and the lifting effect is good, so that the continuity of the operation is ensured.

Drawings

Fig. 1 is a schematic structural view of a wound-stretching device of the present invention;

fig. 2 is a schematic view of a wound-stretching apparatus of the present invention with the stretching assembly in a stretched state;

FIG. 3 is a partial view at A of FIG. 1;

FIG. 4 is a cross-sectional view taken at B of FIG. 1;

reference numerals: 10-wound traction device, 100-base, 110-bottom plate, 111-shaft hole, 120-support frame, 121-sleeve, 122-limiting block, 123-stay bar, 124-base plate, 125-second elastic element, 126-jack, 127-first elastic element, 128-tongue insert, 130-movable plate, 200-drive assembly, 210-drive source, 211-rotary power source, 212-screw rod, 213-push plate, 214-rotation stopping rod, 220-push rod, 300-traction assembly, 310-support rod, 320-cantilever plate, 321-through hole, 330-traction plate, 340-connecting rod, 350-hook body and 360-reset element.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 4, the present embodiment provides a wound stretching device 10 for stretching a wound in a surgical operation, and specifically, the wound stretching device 10 includes a base 100, a driving assembly 200 and a stretching assembly 300. The base 100 is used to hold and support the entire wound stretching device 10, and the driving assembly 200 is used to drive the stretching assembly 300, thereby driving the stretching assembly 300 to expand or contract.

Referring to fig. 1 and 3, the base 100 includes a base plate 110, a support bracket 120, and a movable plate 130. The movable plate 130 is disposed on the base plate 110 through the support bracket 120. And movable plate 130 is parallel to base plate 110, the height of movable plate 130 with respect to base plate 110 can be adjusted, and movable plate 130 can horizontally rotate. Specifically, the bottom plate 110 is a plate-shaped body. The supporting frame 120 includes a sleeve 121, a stopper 122, and a stay 123. The sleeve 121 is vertically disposed on the base plate 110. One end of the stay 123 is inserted into the sleeve 121 and can slide up and down in the sleeve 121. The other end of the stay 123 is disposed at the bottom surface of the movable plate 130. The sidewall of the sleeve 121 is axially provided with a plurality of spaced insertion holes 126, and the insertion holes 126 communicate the inner cavity of the sleeve 121 with the outside. The stay 123 has a mounting hole 129 formed in a radial direction. The stopper 122 includes a tongue 128 and a first elastic member 127. One end of the first elastic member 127 is connected to the bottom of the mounting hole 129. The inserting tongue 128 can be inserted in the mounting 129 hole in a sliding way; and one end of the insertion tongue 128 is connected to the other end of the first elastic member 127; the other end of the tongue 128 passes through the insertion hole 126 of the sleeve 121 and is exposed to the insertion hole 126. In use, when the overall height of the entire pulling assembly 300 needs to be adjusted, the tongue 128 is simply pressed perpendicularly to the stay 123 until the tongue 128 is safely disengaged from the insertion hole 126, and then the stay 123 is pulled to a desired position, the tongue 128 is released, and the tongue 128 is reinserted into the insertion hole 126 by the first elastic member 127, so that the position of the stay 123 can be locked, and the position of the pulling assembly 300 can be adjusted to a desired height.

Referring to fig. 4, in the present embodiment, preferably, the end of the sleeve 121 far from the movable plate 130 is provided with a bottom plate 124. The bottom plate 110 is provided with a T-shaped shaft hole 111. The bottom plate 124 is rotatably inserted into the large hole. The sleeve 121 is rotatably inserted into the small hole of the shaft hole 111. The sleeve 121 and the bottom plate 110 can be rotatably connected, so that an operator can conveniently rotate the pulling assembly 300 to a position right above the wound of a patient according to the position of the wound.

In a most preferred embodiment, a second elastic member 125 is disposed between the bottom plate 124 and the bottom of the shaft hole 111. The side wall of the base plate 124 is provided with a plurality of flanges at intervals along the circumferential direction. A plurality of grooves 112 are formed on the inner wall of the shaft hole 111. The flange can snap into the groove 112. Under the normal condition, under the action of the second elastic element 125, the bottom plate 124 abuts against the intersection of the large hole and the small hole of the axle hole 111, the flange is clamped in the groove 112, when the bottom plate 124 is pressed downwards to make the flange fall off the groove 112, the sleeve 121 can be rotated, and the pulling assembly 300 is rotated to be aligned with the wound. Subsequent release of sleeve 121, under the influence of the resilient member, the flange re-engages groove 112, thereby preventing pulling assembly 300 from rotating about its own axis during the procedure, thereby interfering with the procedure. In the present embodiment, the second elastic member 125 may preferably be a spring. In other embodiments, the second elastic member 125 can be selected from other elastic members capable of expanding and contracting.

Referring to fig. 1 and 2, the driving assembly 200 includes a driving source 210 and a push rod 220. The push rod 220 is provided on the driving source 210, and the driving source 210 can drive the push rod 220 to move up and down. Specifically, the driving source 210 includes a rotary power source 211, a screw 212, a push plate 213, and a rotation stop lever 214. The rotation power source 211 is provided on the movable plate 130. The rotary power source 211 selects a rotary motor capable of forward and reverse rotation. The screw 212 is provided at a power output end of the rotary power source 211. The switch of the rotating motor can extend to the ground, and an operator can start the rotating motor through the switch stepped by feet according to requirements in the operation process; meanwhile, the rotary power source 211 can also be rotated manually, for example, a handle is added on the screw 212, and the screw 212 can also be rotated by the handle, that is, the rotary power source 211 can only drive the screw 212 to rotate. The push plate 213 is connected to the push rod 220 and is vertically parallel to the push rod 220. The push plate 213 has a screw hole. The screw 212 is inserted into and threadedly engaged with the threaded bore. The rotation stopping rod 214 is vertically disposed on the bottom plate 110, extends to the push plate 213, and is connected to the push plate 213 in a manner of sliding up and down. When the screw 212 is driven to rotate by the rotary power source 211, the push plate 213 is driven and the push rod 220 is driven to move up and down. The rotation preventing lever 214 prevents the push plate 213 from rotating together with the screw 212 during the rotation of the screw 212, so that the push plate 213 cannot smoothly slide up and down.

With continued reference to fig. 1 and 2, the pulling assembly 300 includes a strut 310, a cantilevered plate 320, a pulling plate 330, and a linkage 340. The support rod 310 is vertically disposed on the movable plate 130. Cantilever plate 320 is disposed on top of support rod 310, is parallel to movable plate 130, and extends to the outside of movable plate 130. The end of the cantilever plate 320 far from the strut 310 is provided with a through hole 321. The push rod 220 is slidably inserted into the through hole 321. The two pulling plates 330 are disposed opposite to each other, and the ends of one end of the two pulling plates 330 are hinged to each other and abut against the end of the push rod 220 near the moving plate 130. Two connecting rods 340 are provided, one ends of the two connecting rods 340 are hinged with the end of the cantilever plate 320 facing the movable plate 130, the hinge points are located at two sides of the through hole 321, and the other ends of the two connecting rods 340 are respectively hinged with the middle parts of the two pulling plates 330.

When the push rod 220 slides towards the direction close to the bottom plate 110, under the combined action of the push rod 220 and the connecting rod 340, the two pulling plates 330 can be driven to move back and forth, that is, the pulling assembly 300 is in a spread state, that is, the wound can be pulled and spread; when the push rod 220 slides away from the bottom plate 110, the two pulling plates 330 can be driven to move toward each other, i.e., the pulling assembly 300 is in a gradually closed state.

In the present embodiment, as a preferred embodiment, the hook 331 is disposed at the end of each of the two pulling plates 330 far from the driving end. The hook 331 prevents the skin from slipping off during pulling. Further, the hook 331 is provided with a soft layer at its end. The soft layer can scratch the muscle tissue by seeing the placing hook body 331, thereby improving the comfort of the patient.

In addition, the pulling assembly 300 further comprises a restoring member 360. The restoring member 360 has elasticity. All seted up on two tie plates 330 opposite faces and avoided the groove, piece 360 that resets is located and avoids the inslot, and the both ends that reset piece 360 link to each other with two lateral walls that avoid the groove respectively. When the two pulling plates 330 are driven by the push rod 220 to be in the opening state, the restoring member 360 is extended, and when the push rod 220 moves upwards in the direction away from the pulling plates 330, the two pulling plates 330 can move towards each other until the restoring position under the restoring force of the restoring member 360.

The specific use of the wound-stretching device 10 is as follows:

when in use, the inserting tongue 128 is pressed vertically to the supporting rod 310 according to the position of a patient until the inserting tongue 128 is safely separated from the inserting hole 126, then the supporting rod 123 is pulled to a required position, the inserting tongue 128 is released, and the inserting tongue 128 is inserted into the inserting hole 126 again under the action of the first elastic piece 127, so that the position of the supporting rod 123 can be locked, and the position of the pulling assembly 300 is adjusted to a required height; subsequently, the base plate 124 is depressed by the sleeve 121 to cause the flange to fall out of the recess 112, and the sleeve 121 is rotated to release the sleeve 121 after the pulling assembly 300 is aligned with the wound; finally, the rotating power source 211 is started to rotate in the forward direction, the push rod 220 moves downwards, and under the combined action of the push rod 220 and the connecting rod 340, the two pulling plates 330 can be driven to move back and forth, namely, the pulling assembly 300 is in a spreading state, so that the wound can be pulled and spread; when the opening degree of the wound to be adjusted is decreased after or during the operation, the rotary power source 211 is started to rotate in the opposite direction, and the driving rod 220 slides away from the bottom plate 110, so that the two pulling plates 330 can be driven to move in opposite directions, i.e. the pulling assembly 300 is gradually folded.

The wound retractor 10 includes a base 100, a driving assembly 200, and a retractor assembly 300. The height of the support frame 120 can be adjusted through the limiting block 122, so that the wound dressing with different height positions can be adapted; rotating the sleeve 121 aligns the pulling assembly 300 with the wound to facilitate positioning of the pulling assembly 300. Through the way that the flange on the bottom plate 124 on the sleeve 121 is matched with the groove 112, the pulling assembly 300 can be prevented from rotating randomly in the operation process, and the operation is prevented from being influenced; the pulling assembly 300 is driven by the driving assembly 200, when the power source of the rotary power source 211 rotates in the forward direction, and the push rod 220 and the connecting rod 340 act together, the two pulling plates 330 can be driven to move back and forth, so that the wound can be pulled and opened; when the push rod 220 slides away from the bottom plate 110, the two pulling plates 330 can be driven to move toward each other, i.e., the pulling assembly 300 is in a gradually closed state. The reset member 360 can assist in driving the two pulling plates 330 to move toward each other and return to their original positions smoothly. The whole operation process is simple and flexible; meanwhile, manual traction is not needed, so that manpower and space are saved, and the traction effect is good, so that the continuity of the operation is ensured.

Finally, it should be noted that: while there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A wound-stretching device, comprising:

2. A wound pulling device as claimed in claim 1, characterised in that: the support frame comprises a sleeve, a limiting block and a support rod; the sleeve is vertically arranged on the bottom plate; one end of the support rod is inserted into the sleeve and can slide up and down in the sleeve, and the other end of the support rod is arranged on the bottom surface of the movable plate; the side wall of the sleeve is provided with a plurality of spaced jacks along the axial direction, and the jacks communicate the inner cavity of the sleeve with the outside; the support rod is radially provided with a mounting hole, and the limiting block comprises an inserting tongue and a first elastic piece; one end of the first elastic piece is connected with the bottom of the mounting hole, and the inserting tongue can be inserted into the mounting hole in a sliding manner; one end of the inserting tongue is connected with the other end of the first elastic piece; the other end of the inserting tongue penetrates through the inserting hole in the sleeve and is exposed out of the inserting hole.

3. A wound pulling device as claimed in claim 2, characterised in that: the end part of the sleeve, which is far away from the movable plate, is provided with a chassis; the bottom plate is provided with a T-shaped shaft hole, and the chassis can be rotatably inserted into the large hole; the sleeve can be rotatably inserted into the small hole of the shaft hole.

4. A wound pulling device as claimed in claim 3, characterised in that: a second elastic piece is arranged between the chassis and the bottom of the shaft hole; the side wall of the chassis is provided with a plurality of flanges at intervals along the circumferential direction, the inner wall of the shaft hole is provided with a plurality of grooves, and the flanges can be clamped in the grooves.

5. A wound pulling device as claimed in claim 1, characterised in that: the traction assembly comprises a support rod, a cantilever plate, a traction plate and a connecting rod; the support rod is vertically arranged on one side of the movable plate, which is far away from the bottom plate; the cantilever plate is arranged at the top end of the support rod, is parallel to the movable plate and extends to the outer side of the movable plate; the end part of the cantilever plate, which is far away from the support rod, is provided with a through hole; the push rod can be inserted into the through hole in a sliding manner; the two pulling plates are oppositely arranged, the end parts of the two pulling plates close to the cantilever plate are hinged with each other and are abutted against the end part of the push rod close to the movable plate; two connecting rods are arranged, one ends of the two connecting rods are hinged with the end part of the cantilever plate facing the movable plate, and the hinged points are positioned on two sides of the through hole; the other ends of the two connecting rods are respectively hinged with the middle parts of the two pulling plates.

6. A wound pulling device as claimed in claim 5, wherein: and hook bodies are arranged at the end parts of the two pulling plates far away from the cantilever plate.

7. A wound pulling device as claimed in claim 6, wherein: the end part of the hook body is provided with a soft layer.

8. A wound stretching device according to any one of claims 5 to 6, characterised in that: the traction assembly further comprises a reset piece, the reset piece is elastic and provided with two avoidance grooves on the opposite surfaces of the traction plates, the reset piece is located in the avoidance grooves, and the two ends of the reset piece are connected with the two side walls of the avoidance grooves respectively.

9. A wound pulling device as claimed in claim 1, characterised in that: the driving source includes rotary power source, screw rod, push pedal and ends the bull stick, rotary power source sets up on the movable plate, the screw rod sets up rotary power source's power take off end, and with the push rod is parallel, the push pedal is connected on the push rod, and with the push rod is parallel perpendicularly, the screw has been seted up in the push pedal, the screw rod alternates in the screw hole and with screw threaded connection, it is in to end the vertical setting of bull stick on the bottom plate, and extend to the push pedal, and with sliding connection about the push pedal can.