CN215227985U

CN215227985U - Traction handle of surgical retractor and surgical retractor

Info

Publication number: CN215227985U
Application number: CN202121435229.XU
Authority: CN
Inventors: 张小兵; 孟传龙
Original assignee: Tinavi Medical Technologies Co Ltd
Current assignee: Tinavi Medical Technologies Co Ltd; Beijing Tinavi Medical Technology Co Ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-12-21
Anticipated expiration: 2031-06-25

Abstract

The present disclosure relates to a draw handle of a surgical retractor and a surgical retractor, the draw handle comprising: the mounting cavity is arranged in the mounting part, a notch communicated with the mounting cavity is arranged on the mounting part, and the notch is used for allowing a shaft head of a connecting shaft at the top end of the blade to penetrate through the notch and enter the mounting cavity; the locking assembly comprises a working piece movably arranged on the mounting part, the working piece is provided with a locking position and an unlocking position, in the locking position, the first end of the working piece extends to the opening to stop the spindle head in the mounting cavity, and in the unlocking position, the first end of the working piece avoids the opening to allow the spindle head to be separated from the mounting cavity; the locking assembly has a locking state and an unlocking state, wherein in the locking state, the working piece is kept at a locking position, and in the unlocking state, the working piece is switched from the locking position to the unlocking position under the action of external force. The present disclosure provides a pulling handle that facilitates removal and replacement of blades of the same or different sizes.

Description

Traction handle of surgical retractor and surgical retractor

Technical Field

The disclosure relates to the technical field of surgical medical equipment, in particular to a traction handle of a surgical retractor and the surgical retractor.

Background

The surgical retractor is a traditional surgical tool and mainly used for expanding an incision and exposing a surgical field in the surgical process. The suitable surgical retractor needs to be selected according to different patients or different surgical positions, and in the related technology, the blades and the handle of the surgical retractor are not detachable, so that the operator is inconvenient to operate and replace the blades with different sizes.

SUMMERY OF THE UTILITY MODEL

An object of the present disclosure is to provide a pulling handle of a surgical retractor and a surgical retractor, which facilitates removal and replacement of blades of the same or different sizes, so as to partially solve the above-mentioned problems occurring in the related art.

In order to achieve the above object, the present disclosure provides a pulling handle of a surgical retractor, the pulling handle comprising: the device comprises a rod body, wherein one end of the rod body is provided with an installation part, an installation cavity is arranged in the installation part, the installation part is provided with a notch communicated with the installation cavity, the notch is used for allowing a shaft head of a connecting shaft at the top end of a blade to penetrate through the notch to enter the installation cavity, and the blade is used for extending into a cut of a tissue to expand the cut; the locking assembly comprises a working piece movably arranged on the mounting part, the working piece is provided with a locking position and an unlocking position, in the locking position, a first end of the working piece extends to the opening to stop the spindle head in the mounting cavity, and in the unlocking position, the first end of the working piece avoids the opening to allow the spindle head to be separated from the mounting cavity; wherein the locking assembly has a locked state in which the working member is held at the locked position and an unlocked state in which the working member is switched from the locked position to the unlocked position by an external force.

Optionally, be provided with on the diapire of installation department with the through-hole of installation cavity intercommunication, the opening sets up on the lateral wall of installation department and with the through-hole intercommunication, the through-hole is used for holding the connecting axle is located the reduced shaft body part of diameter of spindle nose lower part just is used for the restriction the spindle nose passes the through-hole.

Optionally, the locking assembly further includes a pulling member movably disposed on the rod body, the pulling member is connected to a second end opposite to the first end of the working member, the pulling member has a first position and a second position, in the locked state, the pulling member is located at the first position to hold the working member at the locked position, and in the unlocked state, the pulling member moves from the first position to the second position under the action of an external force to pull the working member to switch from the locked position to the unlocked position.

Optionally, the working member is rotatably disposed on the mounting portion about a pivot axis between the first end and the second end.

Optionally, be provided with the installation in the installation department the chamber that holds of work piece, just be provided with the intercommunication on the installation department hold the chamber with the through hole of opening department the locking position, the first end of work piece passes the through hole extends to opening department the unblock position, the first end of work piece is located hold the intracavity, in order to dodge the opening.

Optionally, a guide channel which extends along the length direction of the rod body and is communicated with the accommodating cavity is arranged in the rod body, the traction piece is constructed as a traction rod which can be movably arranged in the guide channel along the length direction, one end, close to the mounting part, of the traction rod extends into the accommodating cavity and is hinged to the second end of the workpiece, a guide groove which is communicated with the guide channel and extends along the length direction is arranged on the rod body, and a release switch which penetrates through the guide groove is arranged on the traction rod.

Optionally, the locking assembly further includes an elastic resetting member disposed in the guiding channel, and two ends of the elastic resetting member respectively abut against the traction member and the rod body, so as to provide the traction member with an elastic force moving from the second position to the first position.

Optionally, one end of the guide channel, which is close to the mounting portion, is provided with a shoulder, the traction member is provided with a limiting block, and two ends of the elastic reset member respectively abut against the limiting block and the shoulder.

Optionally, the installation department is close to the one end of the body of rod is provided with the intercommunication the heavy groove of installation that holds the chamber, the body of rod is close to the one end of installation department is inserted in the heavy groove of installation and through the fastener with installation department detachably connects.

The other aspect of this disclosure still provides a surgical retractor, surgical retractor includes the blade and as above the pulling handle of surgical retractor, the top of blade has the connecting axle that extends along its length direction, the top of connecting axle is provided with the diameter and is greater than the spindle nose of the diameter of connecting axle shaft body part, the spindle nose is used for detachably install in the installation cavity of pulling handle, wherein, the blade is arranged in stretching into the incision of tissue and has along its relative first side and second side of thickness direction, first side be used for the butt in the tissue, be used for forming the operation region outside the second side.

Through above-mentioned technical scheme, this open traction handle of surgical retractor who provides promptly utilizes locking Assembly unblock ground with the blade locking on the installation department, can convenient to detach and change the blade of the same or not unidimensional. During specific work, when the blade needs to be replaced, the workpiece is switched to the unlocking position from the locking position, so that the shaft head of the blade is allowed to be separated from the mounting cavity through the opening, the dismounting process is completed, then the shaft head of a new blade penetrates through the opening to be inserted into the mounting cavity, the workpiece is switched to the locking position from the unlocking position, and the mounting process is completed by stopping the shaft head in the mounting cavity. Therefore, the pulling handle provided by the disclosure is convenient for disassembling and replacing blades with the same or different sizes, and is convenient for an operator to operate.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a perspective view of a pulling handle provided in an exemplary embodiment of the present disclosure;

FIG. 2 is a top view of a pulling handle provided in an exemplary embodiment of the present disclosure;

FIG. 3 is a cross-sectional view taken at the location A-A in FIG. 2;

FIG. 4 is an enlarged partial schematic view of the location B in FIG. 3;

FIG. 5 is a perspective view of the blade of the surgical retractor provided in an exemplary embodiment of the present disclosure;

fig. 6 is a front view of a surgical retractor provided in an exemplary embodiment of the present disclosure.

Description of the reference numerals

1-a rod body; 110-a guide channel; 111-shoulder; 120-a guide slot; 2-an installation part; 210-a mounting cavity; 220-opening; 230-a through hole; 240-a containment chamber; 250-a through hole; 260-installing a sink; 3-a blade; 310-a connecting shaft; 311-a shaft head; 320-a first side; 330-a second side; 4-a workpiece; 5-a traction member; 510-a limiting block; 6-release switch; 7-an elastic return member; 8-a handle; 810-anti-slip groove; 9-pivot axis.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise specified, the use of the directional terms such as "upper and lower" are defined based on the direction of the drawing of fig. 3, wherein upper corresponds to top and lower corresponds to bottom. "inner and outer" refer to the inner and outer contours of a component or structure itself. In addition, it should be noted that terms such as "first", "second", and the like are used for distinguishing one element from another, and have no order or importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings denote the same elements.

In an embodiment of the first aspect of the present disclosure, a retractor handle for a surgical retractor is provided. Referring to fig. 1 to 6, the pulling handle includes: the structure comprises a rod body 1, wherein one end of the rod body 1 is provided with a mounting part 2, a mounting cavity 210 is arranged in the mounting part 2, the mounting part 2 is provided with a notch 220 communicated with the mounting cavity 210, the notch 220 is used for allowing a shaft head 311 of a connecting shaft 310 at the top end of a blade 3 to penetrate through the notch 220 and enter the mounting cavity 210, and the blade 3 is used for extending into a cut of a tissue so as to expand the cut; and a locking assembly, the locking assembly comprising a working member 4 movably arranged on the mounting portion 2, the working member 4 having a locking position in which a first end of the working member extends to the opening 220 to stop the stub shaft 311 in the mounting cavity 210 and an unlocking position in which the first end of the working member 4 is clear of the opening 220 to allow the stub shaft 311 to disengage from the mounting cavity 210; wherein, the locking assembly has a locking state and an unlocking state, and in the locking state, the working piece 4 keeps in the locking position, and in the unlocking state, the working piece 4 switches from the locking position to the unlocking position under the effect of external force.

Through above-mentioned technical scheme, this open traction handle of surgical retractor who provides promptly utilizes locking Assembly unblock ground with blade 3 locking on installation department 2, can convenient to detach and change the blade 3 of the same or not unidimensional. In the specific work, when the blade 3 needs to be replaced, the working piece 4 is switched from the locking position to the unlocking position to allow the shaft head 311 of the blade 3 to be separated from the mounting cavity 210 through the notch 220, the dismounting process is completed, then the new shaft head 311 of the blade 3 is inserted into the mounting cavity 210 through the notch 220, the working piece 4 is switched from the unlocking position to the locking position to stop the shaft head 311 in the mounting cavity 210, and the mounting process is completed. Therefore, the pulling handle provided by the disclosure is convenient for disassembling and replacing blades with the same or different sizes, and is convenient for an operator to operate.

In order to improve the stability of the blade 3 mounted on the mounting part 2, in some embodiments, as shown in fig. 4 and 5, a through hole 230 communicating with the mounting cavity 210 is formed in the bottom wall of the mounting part 2, a gap 220 is formed in the side wall of the mounting part 2 and communicates with the through hole 230, and the through hole 230 is used for accommodating a shaft body part of the connecting shaft 310 with a reduced diameter at the lower part of the shaft head 311 and is used for limiting the shaft head 311 from passing through the through hole 230. Thus, the shaft head 311 passes through the notch 220 on the side wall and enters the mounting cavity 210, and meanwhile, the shaft head 311 is clamped on the upper side of the through hole 230, so that the stability of the blade 3 mounted on the mounting part 2 can be improved.

In some embodiments, referring to fig. 3, the locking assembly further comprises a pulling member 5 movably disposed on the rod 1, the pulling member 5 is connected to a second end opposite to the first end of the working member 4, the pulling member 5 has a first position and a second position, in the locked state, the pulling member 5 is located at the first position to keep the working member 4 at the locked position, and in the unlocked state, the pulling member 5 moves from the first position to the second position under the action of external force to pull the working member 4 to switch from the locked position to the unlocked position. In this way, by switching the traction element 5 between the first position and the second position, switching of the locking assembly between the locked state and the unlocked state can be achieved for bringing the operating element 4 between the locked position and the unlocked position.

The working member 4 may be disposed on the mounting portion 2 in any suitable manner according to the requirements of the actual application, for example, in some embodiments, the working member 4 is rotatably disposed on the mounting portion 2 about a pivot axis between a first end and a second end, as shown with reference to fig. 3 and 4. Thus, in the locking position, the first end of the working member 4 extends to the notch 220 to stop the spindle nose 311 in the mounting cavity 210, and can be switched to the unlocking position by rotating around the pivot axis, i.e. the first end of the working member 4 avoids the notch 220, so as to allow the spindle nose 311 to enter and exit the mounting cavity from the notch 220. Here, referring to fig. 4, the working member 4 may be pivotally provided to the mounting portion 2 by a pivot shaft 9. In other embodiments, the operating member 4 may be movably disposed on the mounting portion 2, so that the operating member 4 can be shifted between the locking position and the unlocking position by means of translation, which is not specifically limited by the present disclosure.

When the working member 4 is rotatably disposed on the mounting portion 2 about the pivot axis, the working member 4 may be disposed on an outer wall of the mounting portion 2, or may be disposed inside the mounting portion 2, for example, when the working member 4 is disposed inside the mounting portion 2, as shown in fig. 4, a receiving cavity 240 for mounting the working member 4 is disposed in the mounting portion 2, and a through hole 250 for communicating the receiving cavity 240 with the opening 220 is disposed on the mounting portion 2, in the locking position, a first end of the working member 4 passes through the through hole 250 and extends to the opening 220, and in the unlocking position, a first end of the working member 4 is disposed in the receiving cavity 240 to avoid the opening 220. Thus, the workpiece 4 is arranged in the accommodating cavity 240 of the mounting part 2, so that the parts such as the workpiece 4 can be prevented from being polluted by the external environment, the shielding performance is good, and the attractive effect is achieved.

In some embodiments, referring to fig. 3, a guide channel 110 extending along the length direction of the rod body 1 and communicating with the accommodating cavity 240 is provided in the rod body 1, the traction member 5 is configured as a traction rod movably provided in the guide channel 110 along the length direction, one end of the traction rod near the mounting portion 2 extends into the accommodating cavity 240 and is hinged with the second end of the working member 4, a guide groove 120 communicating with the guide channel 110 and extending along the length direction is provided in the rod body 1, and a release switch 6 passing through the guide groove 120 is provided on the traction rod. In this way, the release switch 6 can be toggled to move along the guide slot 120, so that the traction member 5 can be switched between the first position and the second position, and then the locking assembly can be triggered to be switched between the locking state and the unlocking state, so as to complete the locking and unlocking functions of the blade 3.

In some embodiments, referring to fig. 4, the notch 220 may be disposed on a side wall of the mounting portion 2 facing the side of the rod 1, and the pivot axis of the working member 4 is perpendicular to the length direction of the rod 1, so that the first end of the working member 4 can rotate in a direction close to or away from the notch 220, and further, when the blade 3 is mounted, the spindle head 311 of the blade 3 forces the working member 4 to rotate clockwise (based on the direction perpendicular to the drawing plane of fig. 4 and from the outside to the inside) around the pivot axis, when the spindle head 311 is inserted into the mounting cavity 210, the working member 4 can be reset to the locking position under the pushing of the pulling member 5, and also can be automatically reset to the locking position by mounting the elastic resetting member 7, so as to implement an automatic locking function.

In order to achieve the automatic locking function of the locking assembly, in some embodiments, referring to fig. 4, the locking assembly further includes an elastic resetting member 7 disposed in the guiding channel 110, and two ends of the elastic resetting member 7 respectively abut against the pulling member 5 and the rod body 1, so as to provide the pulling member 5 with an elastic force to move from the second position to the first position. Thus, when the spindle nose 311 is inserted into the mounting cavity 210, the elastic restoring member 7 pushes the pulling member 5 to move to the first position, so as to drive the working member 4 to rotate counterclockwise (as viewed from the outside to the inside direction perpendicular to the drawing of fig. 4) to the locking position, thereby realizing the automatic locking function. In addition, when dismantling blade 3, stir release switch 6, drive work piece 4 through drawing 5 and rotate to the unblock position to dismantle blade 3, dismantle the back when blade 3, loosen release switch 6, draw 5, release switch 6 and work piece 4 automatic re-setting under the elasticity effect of elasticity piece 7 that resets, promptly, the locking subassembly automatic re-sets to the locking state.

In some specific embodiments, referring to fig. 4, one end of the guiding channel 110 close to the mounting portion 2 is provided with a shoulder 111, the pulling member 5 is provided with a stop block 510, and two ends of the elastic resetting member 7 respectively abut against the stop block 510 and the shoulder 111. Thus, when the release switch 6 is toggled to drive the traction member 5 to move from the first position to the second position, the limiting block 510 compresses the elastic reset member 7, and after the release switch 6 is released, the elastic reset member 7 forces the traction member 5 to move from the second position to the first position by pushing the limiting block 510. Wherein, elasticity piece 7 that resets can adopt the spring, and this spring can cup joint on drawing 5, and its both ends support respectively in stopper 510 and circular bead 111, and perhaps, the quantity of this spring can be a plurality ofly, and a plurality of springs can be along drawing 5 circumference interval ground setting between circular bead 111 and stopper 510. In addition, the stopper 510 may be configured as a circle, a rectangle, or any other suitable shape, and the disclosure is not limited thereto.

In some embodiments, as shown in fig. 4, one end of the mounting portion 2 near the rod body 1 is provided with a mounting sinking groove 260 communicated with the accommodating chamber 240, and one end of the rod body 1 near the mounting portion 2 is inserted into the mounting sinking groove 260 and detachably connected with the mounting portion 2 by a fastener. Thus, the mounting part 2 and the rod body 1 are detachably connected, so that the workpiece 4 can be mounted conveniently and the mounting part 2 and the rod body 1 can be cleaned comprehensively. The fasteners may be bolts or screws, and the disclosure is not limited thereto.

In some embodiments, referring to fig. 1, a handle 8 is disposed at an end of the rod body 1 away from the mounting portion 2 to facilitate holding operation by an operator.

In some embodiments, the handle 8 may be provided with anti-slip structure to prevent slippage when held. The anti-slip structure may be configured in any suitable manner, for example, the anti-slip structure may comprise a plurality of anti-slip grooves 810 arranged at intervals in the circumferential direction of the handle 8 and each extending in the length direction of the rod body 1.

In an embodiment of the second aspect of the disclosure, a surgical retractor is provided. Referring to fig. 1 to 6, the surgical retractor comprises a blade 3 and a retractor handle of the surgical retractor, the retractor handle is provided with a connecting shaft 310 extending along the length direction of the blade 3, the top end of the connecting shaft 310 is provided with a shaft head 311 with a diameter larger than that of a shaft body part of the connecting shaft 310, the shaft head 311 is detachably arranged in an installation cavity 210 of the retractor handle, the blade 3 is used for extending into an incision of tissue and is provided with a first side surface 320 and a second side surface 330 which are opposite along the thickness direction of the blade, the first side surface 320 is used for abutting against the tissue, and the second side surface 330 is used for forming an operation area. In use, the blade 3 is inserted into a tissue incision and the incision is dilated by pulling on the handle, revealing the surgical field. Through the detachable connection of the blade 3 and the traction handle, the blade 3 with the same or different sizes can be conveniently replaced according to the actual application requirements, and the operation of an operator and the operation can be conveniently carried out.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. A retractor handle for a surgical retractor, said retractor handle comprising:

the novel blade comprises a rod body (1), wherein one end of the rod body (1) is provided with an installation part (2), an installation cavity (210) is arranged in the installation part (2), the installation part (2) is provided with a notch (220) communicated with the installation cavity (210), the notch (220) is used for allowing a shaft head (311) of a connecting shaft (310) at the top end of a blade (3) to penetrate through the notch (220) to enter the installation cavity (210), and the blade (3) is used for extending into a cut of a tissue to expand the cut; and

a locking assembly including a working member (4) movably disposed on the mounting portion (2), the working member (4) having a locked position in which a first end of the working member extends to the notch (220) to stop the stub shaft (311) in the mounting cavity (210) and an unlocked position in which the first end of the working member (4) clears the notch (220) to allow the stub shaft (311) to disengage from the mounting cavity (210);

wherein the locking assembly has a locked state in which the operating member (4) is held in the locked position and an unlocked state in which the operating member (4) is switched from the locked position to the unlocked position by an external force.

2. The pulling handle for the surgical retractor according to claim 1, wherein a through hole (230) communicating with the mounting cavity (210) is formed in the bottom wall of the mounting portion (2), the notch (220) is formed in the side wall of the mounting portion (2) and is communicated with the through hole (230), and the through hole (230) is used for accommodating a shaft body part of the connecting shaft (310) with a reduced diameter at the lower part of the shaft head (311) and is used for limiting the shaft head (311) to pass through the through hole (230).

3. The pulling handle for a surgical retractor according to claim 1, wherein the locking assembly further comprises a pulling member (5) movably arranged on the shaft (1), the pulling member (5) being connected to a second end of the working member (4) opposite to the first end, the pulling member (5) having a first position and a second position, in the locked state the pulling member (5) being in the first position for holding the working member (4) in the locked position, and in the unlocked state the pulling member (5) being moved from the first position to the second position under the influence of an external force for pulling the working member (4) to switch from the locked position to the unlocked position.

4. The retractor handle of claim 3 wherein the operating member (4) is rotatably mounted on the mounting portion (2) about a pivot axis between the first and second ends.

5. The pulling handle of a surgical retractor according to claim 4, wherein the mounting portion (2) is provided with a receiving cavity (240) for receiving the working member (4), the mounting portion (2) is provided with a through hole (250) for communicating the receiving cavity (240) with the opening (220), the first end of the working member (4) passes through the through hole (250) and extends to the opening (220) at the locking position, and the first end of the working member (4) is located in the receiving cavity (240) at the unlocking position to avoid the opening (220).

6. The pulling handle for a surgical retractor according to claim 5, wherein a guiding channel (110) extending along the length direction of the pulling handle is formed in the shaft body (1) and is communicated with the accommodating cavity (240), the pulling member (5) is configured as a pulling rod movably arranged in the guiding channel (110) along the length direction, one end of the pulling rod close to the mounting portion (2) extends into the accommodating cavity (240) and is hinged with the second end of the working member (4), a guiding groove (120) communicated with the guiding channel (110) and extending along the length direction is formed in the shaft body (1), and a release switch (6) penetrating through the guiding groove (120) is formed in the pulling rod.

7. The pulling handle for surgical retractor according to claim 6, wherein the locking assembly further comprises an elastic restoring member (7) disposed in the guiding channel (110), and two ends of the elastic restoring member (7) respectively abut against the pulling member (5) and the rod body (1) for providing the pulling member (5) with an elastic force to move from the second position to the first position.

8. The pulling handle for surgical hooks according to claim 7, wherein a shoulder (111) is disposed at one end of the guiding channel (110) close to the mounting portion (2), a stop block (510) is disposed on the pulling member (5), and two ends of the elastic restoring member (7) respectively abut against the stop block (510) and the shoulder (111).

9. The pulling handle of a surgical retractor according to claim 5 wherein the end of the mounting portion (2) near the shaft (1) is provided with a mounting sink (260) communicating with the accommodating cavity (240), and the end of the shaft (1) near the mounting portion (2) is inserted into the mounting sink (260) and detachably connected to the mounting portion (2) by a fastener.

10. A surgical retractor, characterized in that the surgical retractor comprises a blade (3) and a pulling handle of the surgical retractor according to any one of claims 1 to 9, the top end of the blade (3) is provided with a connecting shaft (310) extending along the length direction of the blade, the top end of the connecting shaft (310) is provided with a shaft head (311) having a diameter larger than that of a shaft body part of the connecting shaft (310), the shaft head (311) is used for being detachably mounted in a mounting cavity (210) of the pulling handle, wherein the blade (3) is used for extending into an incision of a tissue and is provided with a first side surface (320) and a second side surface (330) opposite to each other along the thickness direction of the blade, the first side surface (320) is used for abutting against the tissue, and the second side surface (330) is used for forming a surgical area.