CN209153805U - A kind of scalp retractor - Google Patents

Abstract

The utility model discloses a kind of scalp retractor, applying has the first tong arm, the second tong arm in neurosurgical operation instrument field, including the first clamp handle, the second clamp handle, detachable connection；First tong arm and the second tong arm upper surface are equipped with operating stick, shank, shaft and jack, and the first tong arm and operating stick, shank, shaft and jack position on the second tong arm are mutually center symmetric setting.The utility model is after the traction for completing scalp is opened, simply reliably the opening state of draw hook can be locked, clamp handle is removed simultaneously, greatly mitigate the weight of scalp retractor, so that directly scalp retractor is hung on patient's scalp so that surgical doctor can two hands more freely perform the operation.

Description

A kind of scalp retractor

Technical field

The utility model belongs to neurosurgical operation instrument field, and in particular to a kind of scalp retractor.

Background technique

Scalp retractor be it is a kind of for neurosurgery when retract scalp tissue and appear surgical field of view, consequently facilitating The surgical instrument that surgical doctor is detected and operated.

Currently used scalp retractor is retracted using a kind of children scalp as disclosed in patent CN201436990U Device, vice body front are to retract pawl, and rear portion is the opening shape that locking retracts pawl, and scalp tissue is kept to be in traction state, from And expose the retaining mechanism of surgical field of view.Which represent the scalp retractors of the existing overwhelming majority (to be not only children scalp to retract With), i.e., after scalp is drawn out, entire scalp retractor be still doctor to be held in or other support staff one only on hand, with Mitigate scalp retractor weight itself scalp is pullled, the other hand is individually operated, thus waste doctor or The operation possibility of one hand of other support staff reduces procedure efficiency.Also have after opening scalp retractor, by locking machine Structure locks vice body, keeps the opening state for retracting pawl, but entire scalp retractor is directly hung on patient's scalp, in this way If, since scalp retractor weight itself is larger, complicated retaining mechanism in addition, weight is bigger, entire scalp retractor It hangs on patient's scalp, patient's scalp can be generated and additional pull injury.

Utility model content

In view of this, being opened the purpose of this utility model is to provide a kind of scalp retractor in the traction for completing scalp Afterwards, simply reliably the opening state of draw hook can be locked, while clamp handle is removed, greatly mitigate the weight of scalp retractor Amount, so that directly scalp retractor is hung on patient's scalp so that surgical doctor can two hands more freely into Row operation.

In order to achieve the above objectives, the utility model provides the following technical solutions:

A kind of scalp retractor, including the first clamp handle and the second clamp handle interconnected by joint pin；First clamp handle and One end of two clamp handles is integrally formed with handle hole, and detachable connection has the first tong arm and the second tong arm to the other end respectively；It is described First clamp handle and the first tong arm, the second clamp handle and the second tong arm junction are equipped with the matched groove in type face and protrusion；It is vertical described Groove and protrusion offer threaded hole；It is bolted in the threaded hole by the first clamp handle and the first tong arm, the second clamp handle and second The bolt that tong arm is connected and fixed；The lower surface of first tong arm and the second tong arm is opposite to be equipped with several draw hooks；The traction Hook is bent along the first tong arm and the second tong arm opening direction；First tong arm and the second tong arm upper surface be equipped with operating stick, Shank, shaft and jack, and during the first tong arm and operating stick, shank, shaft and jack position on the second tong arm be mutually The heart is symmetrical arranged；The operating stick and shank are rigidly connected in shaft respectively and are mutually perpendicular to；Wherein on the first tong arm Shaft is rotatably set to the front of the first tong arm, the shank that the jack on the first tong arm is set on the second tong arm rotate to Projected position when vertical first tong arm；Wherein the shaft on the second tong arm is rotatably set to the rear portion of the second tong arm, and second The projected position when shank that jack on tong arm is set on the first tong arm is rotated to vertical second tong arm.

Preferably, first tong arm and the second tong arm upper surface are equipped with card slot；The card slot along vertical first tong arm and The setting of second tong arm length direction, and 1~2mm of depth, width is slightly larger than operation shank diameter.

Preferably, rotation handle is connected on the outside of the bolt.

Preferably, first tong arm and the second tong arm are made of medical polypropylene material.

The utility model has the beneficial effects that: the utility model is after the traction for completing scalp is opened, it can be simply reliable The opening state of draw hook is locked, while clamp handle being removed, mitigates the weight of scalp retractor, greatly directly will Scalp retractor is hung on patient's scalp so that surgical doctor can two hands more freely perform the operation.

Detailed description of the invention

In order to keep the purpose of this utility model, technical scheme and beneficial effects clearer, the utility model provides as follows Attached drawing is illustrated:

Fig. 1 is the utility model overall structure diagram (opening state)；

Fig. 2 is the region M partial enlargement diagram in Fig. 1；

Fig. 3 is Section A-A schematic diagram in Fig. 1；

Structural schematic diagram (only showing front) when Fig. 4 is the utility model pre- grafting；

Structural schematic diagram (only showing front) when Fig. 5 is the utility model grafting；

Structural schematic diagram is (before only showing when Fig. 6 is disassembles the first tong arm and the second tong arm after the utility model grafting Portion).

It is marked in attached drawing as follows: the first clamp handle 1, the second clamp handle 2, joint pin 3, handle hole 4, the first tong arm 5, the second tong arm 6, groove 7, protrusion 8, threaded hole 9, bolt 10, draw hook 11, operating stick 12, shank 13, shaft 14, jack 15, card slot 16, Rotation is 17.

Specific embodiment

Below in conjunction with attached drawing, the preferred embodiment of the utility model is described in detail.

Explanation about locations of structures description: the description as described in " forward and backward " as follows defines opposite first tong arm 5 and second Right side before 6 direction of tong arm is, i.e. in Fig. 1；After the opposite handle hole direction of definition is, i.e. left side in Fig. 1.

Such as Fig. 1, a kind of scalp retractor, including the first clamp handle 1 and the second clamp handle 2 interconnected by joint pin 3；Described first One end of clamp handle 1 and the second clamp handle 2 is integrally formed with handle hole 4, and detachable connection has the first tong arm 5 and to the other end respectively Two tong arms 6；First clamp handle 1 and the first tong arm 5, the second clamp handle 2 and 6 junction of the second tong arm are equipped with the matched groove in type face 7 and raised 8, such as Fig. 2；The vertical groove 7 and protrusion 8 offer threaded hole 9, because 9 structure of threaded hole is hidden by bolt 10 in Fig. 2 Gear, threaded hole 9 are shown in Fig. 6；It is bolted in the threaded hole 9 by the first clamp handle 1 and the first tong arm 5, the second clamp handle 2 and the second tong arm 6 bolts 10 being connected and fixed；The lower surface of first tong arm 5 and the second tong arm 6 is opposite to be equipped with several draw hooks 11；It is described to lead Draw hook 11 to bend along the first tong arm 5 and 6 opening direction of the second tong arm, structure such as Fig. 3 shows only a kind of shape certainly here The draw hook 11 of formula is not the emphasis of the application, therefore uses 11 structure of draw hook in the prior art；First pincers Arm 5 and 6 upper surface of the second tong arm are equipped with operating stick 12, shank 13, shaft 14 and jack 15, and the first tong arm 5 and second Operating stick 12, shank 13, shaft 14 and 15 position of jack on tong arm 6 are mutually center symmetric setting；12 He of operating stick Shank 13 is rigidly connected in shaft 14 respectively and is mutually perpendicular to；Wherein the shaft 14 on the first tong arm 5 is rotatably set to The front of first tong arm 5, the jack 15 on the first tong arm 5 are set to the rotation of the shank 13 on the second tong arm 6 to vertical first Projected position when tong arm 5；Wherein the shaft 14 on the second tong arm 6 is rotatably set to the rear portion of the second tong arm 6, the second tong arm Jack 15 on 6 is set to the projected position when rotation of the shank 13 on the first tong arm 5 to vertical second tong arm 6.

In use, first needing surgery location to scratch the notch (not shown) that a length is L, then hand in patients head Art doctor two refers to across handle hole 4,11 alignment cuts of draw hook of 6 lower section of the first tong arm 5 and the second tong arm is put into, and make to lead Draw the scalp that hook 11 tangles notch two sides respectively, two fingers strut the first clamp handle 1 and the second clamp handle 2, under the effect of joint pin 3, make First tong arm 5 and the second tong arm 6 are opened, to make two rows of draw hooks 11 of opposite side retract scalp, by the craniocerebral operation visual field It is exposed.The above are the routine operation for using scalp retractor, scalp retractor state such as Fig. 1 at this time.

After the traction for completing scalp is opened, followed by pre- grafting, such as Fig. 4, respectively by the first tong arm 5 and the second pincers Operating stick 12 on arm 6 be rotated by 90 ° or 270 degree (jack 15 has certain altitude on the first tong arm 5 or 6 surface of the second tong arm, Being interfered when to avoid shank 13 from following rotation with jack 15, can flexibly choose direction of rotation), it is directed at shank 13 The jack 15 on opposite.What needs to be explained here is that opening kerf width c (equal between opposite side two rows draw hook 11 away from From) want sufficiently large, to guarantee that 13 energy vertical stretching of shank is opened, positioned at the pre- grafting position in 15 outside of jack.

Then grafting, such as Fig. 5 are carried out, surgical doctor two refers to semi-coast once, and incision of scalp is in width direction due to tough Property can shrink, and then shank 13 is inserted into the jack 15 of opposite side, and the contraction of incision of scalp stops, i.e. completion retractor scalp is opened The locking of state.

Bolt 10 is finally unscrewed and removed, is made 6 edge of the first clamp handle 1 and the first tong arm 5, the second clamp handle 2 and the second tong arm It is separated at groove 7 and protrusion 8, and then removes the first clamp handle 1 and the second clamp handle 2, such as Fig. 6 after removing.So far, scalp is completed Traction is opened, and simple reliably by the opening state locking of draw hook 11, while the first clamp handle 1 and the second clamp handle 2 being removed, The weight for greatly mitigating scalp retractor, reduces weight about 40%, and then scalp retractor directly can be hung on patient's head Pi Shang will not be pullled and be hurt patient's scalp, and two hands of surgical doctor are freed, and can more freely be performed the operation.

The present embodiment is only defined a kind of structure type of scalp retractor, in actual use, can be according to long incision L is spent, the scalp retractor of multiple models is equipped with, sees Fig. 6, improves the following size reference: according to incision length L, choosing the first pincers The model that the length a of 1/ second clamp handle 2 of handle is about 0.8L, wherein the length b of shank 13 is about 0.8a, the kerf width of opening Effective surgical field of view width c that c, i.e. width direction are opened is about 0.8b, and in general, kerf width c is about incision length L 0.5 times.

Further, the first tong arm 5 and 6 upper surface of the second tong arm that the present embodiment uses are equipped with card slot 16；The card slot 16 are arranged along vertical first tong arm 5 and 6 length direction of the second tong arm, and 1~2mm of depth, and width is slightly larger than 13 diameter of operating stick, Operating stick 13 can be installed in card slot 16 by the design, and then make shank 13 also parallel with the first tong arm 5 or the second tong arm 6, Convenient playback when not in use is received whole.

Further, rotation is connected on the outside of the bolt 10 that the present embodiment uses 17, such as Fig. 1,2, which can facilitate Tighten and unclamp bolt 10.

Further, the first tong arm 5 and the second tong arm 6 that the present embodiment uses are made of medical polypropylene material, Simple metal structure has the characteristics that lighter relatively, can further decrease suspension to the first tong arm 5 and the second pincers on patient's scalp The weight of arm 6.

Finally, it is stated that preferred embodiment above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, to the greatest extent Pipe has been described in detail the utility model by above preferred embodiment, but those skilled in the art should manage Solution, can make various changes, without departing from the utility model claims book institute to it in the form and details The range of restriction.

Claims (4)

1. a kind of scalp retractor, it is characterised in that: including the first clamp handle and the second clamp handle interconnected by joint pin；Described first One end of clamp handle and the second clamp handle is integrally formed with handle hole, and detachable connection has the first tong arm and the second pincers to the other end respectively Arm；First clamp handle and the first tong arm, the second clamp handle and the second tong arm junction are equipped with the matched groove in type face and protrusion；It hangs down The straight groove and protrusion offer threaded hole；It is bolted in the threaded hole by the first clamp handle and the first tong arm, the second clamp handle The bolt being connected and fixed with the second tong arm；

The lower surface of first tong arm and the second tong arm is opposite to be equipped with several draw hooks；The draw hook is along the first tong arm and The bending of two tong arm opening direction；

First tong arm and the second tong arm upper surface are equipped with operating stick, shank, shaft and jack, and the first tong arm and Operating stick, shank, shaft and jack position on two tong arms are mutually center symmetric setting；

The operating stick and shank are rigidly connected in shaft respectively and are mutually perpendicular to；

Wherein the shaft on the first tong arm is rotatably set to the front of the first tong arm, and the jack on the first tong arm is set to second Projected position when shank on tong arm is rotated to vertical first tong arm；

Wherein the shaft on the second tong arm is rotatably set to the rear portion of the second tong arm, and the jack on the second tong arm is set to first Projected position when shank on tong arm is rotated to vertical second tong arm.

2. scalp retractor according to claim 1, it is characterised in that: first tong arm and the second tong arm upper surface are set There is card slot；The card slot is arranged along vertical first tong arm and the second tong arm length direction, and 1~2mm of depth, and width is slightly larger than behaviour Make shank diameter.

3. scalp retractor according to claim 1, it is characterised in that: be connected with rotation handle on the outside of the bolt.

4. scalp retractor according to claim 1, it is characterised in that: first tong arm and the second tong arm are using medical Polypropylene material is made.