CN213047079U - Traction device for neurosurgical incision - Google Patents

Abstract

The utility model relates to a tractive device for neurosurgery incision, include: a disc-shaped frame relatively fixed to a surgical site of a patient in such a manner that an incision is placed in a cavity thereof and the incision is exposed; and a surgical retractor which moves in a radial direction of the disk frame in such a manner that the incision can be enlarged; the disk-shaped frame is provided with a directional hole along the radial direction of the disk-shaped frame and used for fixing a fixing rod of the surgical retractor, and the fixing rod is constructed into a cavity structure, so that the hook rod is connected with the fixing rod in a sliding mode in a mode that the hook body can move along the radial direction of the disk-shaped frame. The removal of hook lever can only be along the axial of dead lever, also be exactly the radial of dish-shaped frame, and the dead lever has also restricted the range of rocking of hook lever when providing the sliding space for the hook lever moreover to overcome and use the hook body that the spring brought as the pulling force part to rock, reduced the incision and rocked the possibility that brings secondary wound because of the hook body, reduced patient's postoperative misery.

Description

Traction device for neurosurgical incision

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a tractive device for neurosurgery incision.

Background

During neurosurgery, the incision is mostly made in an arc shape or a straight incision to expose the lesion part. During operation, medical staff pull the wound through the pulling hook to expose the operation visual field. The existing traction hook comprises a spring (or a rubber band) and an iron clamp.

For example, chinese patent publication No. CN209916085U discloses an improved scalp retractor. The scalp retractor comprises a headstock and a positioning device for fixing scalp, wherein the headstock is of a whole circular ring-shaped structure, a circle of dovetail groove is formed in the outer circular surface of the headstock, a plurality of iron clamps which can be in clearance sliding fit with the iron clamps are arranged in the dovetail groove, the whole iron clamps are of a trapezoidal structure, clamping pieces extend outwards from two sides of the upper top surface of each iron clamp respectively, and grooves are formed in the middle of each clamping piece. The positioning device comprises a stainless steel bead chain which can be clamped in the groove, a metal spring ring is fixedly mounted at one end of the stainless steel bead chain, and a scalp hook is fixed at the end of the metal spring ring.

However, the device uses the traditional spring design to assist in applying the pulling force, the spring needs to expand the notch under the condition that the elongation amount of the spring reaches a certain amount, and the spring is easy to shift in the pulling process, such as shaking, and further driving the iron clamp (hook body) to move randomly, and the damage to the notch is unstable.

Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the inventor studied a lot of documents and patents when making the present invention, but the space did not list all details and contents in detail, however, this is by no means the present invention does not possess these prior art features, but on the contrary the present invention has possessed all features of the prior art, and the applicant reserves the right to increase the related prior art in the background art.

SUMMERY OF THE UTILITY MODEL

To the deficiency of the prior art, the utility model provides a traction device for neurosurgery incision, include: a disc-shaped frame relatively fixed to a surgical site of a patient in such a manner that an incision is placed in a cavity thereof and the incision is exposed; and a surgical retractor which moves in a radial direction of the disk frame in such a manner that the incision can be enlarged; the disk-shaped frame is provided with a directional hole along the radial direction of the disk-shaped frame and used for fixing a fixing rod of the surgical retractor, the fixing rod is constructed into a cavity structure, and the hook rod is connected with the fixing rod in a sliding mode in a mode that the hook body can move along the radial direction of the disk-shaped frame. The removal of hook lever can only be along the axial of dead lever, also be exactly the radial of dish-shaped frame, and the dead lever has also restricted the range of rocking of hook lever when providing the sliding space for the hook lever moreover to overcome and use the hook body that the spring brought as the pulling force part to rock, reduced the incision and rocked the possibility that brings secondary wound because of the hook body, reduced patient's postoperative misery.

According to a preferred embodiment, the section of the fixing rod extending outside the outer side of the disc-shaped frame is provided with locking holes arranged in its axial direction, which holes penetrate to its cavity structure, so that the fixing rod can restrict the hook rod from sliding in case the hook body enlarges the cut-out.

According to a preferred embodiment, the hook rod is provided with a locking groove running in its axial direction and matching the locking hole. When the limiting groove and the limiting convex block are contacted with each other, the hook body can not further enlarge the incision, and the incision is prevented from being torn due to negligence of medical staff.

According to a preferred embodiment, the fixing lever is provided with a movement restricting portion capable of restricting movement of the hook lever.

According to a preferred embodiment, the alignment openings are arranged along the circumference of the plate-shaped carrier, so that the surgical retractor can be arranged at least two on the plate-shaped carrier.

According to a preferred embodiment, the angle between two circumferentially adjacent directional holes is such that the cut-out is substantially oval after enlargement. In the multi-point pulling process, the retraction amount of the hook in the middle position can be larger than the retraction amount of the hook body in the two side positions, the incision is approximately oval after being enlarged, and the oval incision can reduce the possibility of tearing.

According to a preferred embodiment, the disk-shaped frame has an adhesive patch for fixing it to the surgical site.

According to a preferred embodiment, the hook stem is detachably connected to the hook body.

According to a preferred embodiment, the directional hole is in interference fit with the fixing rod.

According to a preferred embodiment, the pilot hole is threadedly connected to the fixing rod.

Drawings

Fig. 1 is a schematic view of a preferred pulling apparatus provided by the present invention;

fig. 2 is a schematic view of a preferred surgical retractor provided in accordance with the present invention;

fig. 3 is a side view of a preferred fixation rod provided by the present invention;

fig. 4 is a preferred disk rack provided by the present invention; and

fig. 5 is another preferred tray-shaped frame provided by the present invention.

List of reference numerals

100: disk frame 200 b: hook rod

200: the surgical retractor 200 c: hook body

100 a: cavity 200 a-1: cavity structure

100 b: alignment hole 200 a-2: locking hole

100 c: disk body 200 b-1: locking groove

200 a: fixing rod 200 b-2: spacing lug

Detailed Description

This is described in detail below with reference to fig. 1-5.

Example 1

The present embodiment discloses a retractor for a neurosurgical incision. As shown in fig. 1, the retractor device includes a disc frame 100 and a surgical retractor 200.

As shown in fig. 4 or 5, the disc holder 100 includes a cavity 100a, an orientation hole 100b, and a disc 100 c. The tray 100c defines a cavity 100a and, in use, the incision is located within the cavity 100a and is exposed to view. As shown in fig. 4 or 5, the directional hole 100b is arranged in the disk body 100c along the radial direction of the disk frame 100. Preferably, the disc shaped frame 100 has a sticker for securing it to the surgical site. The glue is pasted on the tray body 100c and is sealed by centrifugal paper when not used. The adhesive tape can be arranged in a triangular shape, or can be annularly arranged around the disc body 100c for a circle. In use, the doctor secures the disc holder 100 by means of the adhesive patch.

As shown in fig. 2, the surgical retractor 200 includes a fixing rod 200a, a hooking rod 200b and a hooking body 200 c. The hook body 200c is a conventional pulling member in the art, and may be shaped and configured as is known in the art. The fixing rod 200a is constructed with a cavity structure 200a-1 therein for sliding engagement with the hook rod 200 b. The hook lever 200b is connected to the hook body 200 c.

Preferably, the hook lever 200b is detachably coupled with the hook body 200 c. For example, the hook stem 200b may be threadedly coupled with the hook body 200 c. Alternatively, the hook rod 200b and the hook body 200c may be fastened. The hook rod 200b is detachably connected with the hook body 200c, so that on one hand, the hook rod and the hook body are separated to facilitate disinfection and sterilization treatment; on the other hand, the medical staff can select different hooks 200c to be arranged on the hook rod 200b, so that the disc-shaped frame 100, the hook rod 200b, the fixed rod 200a, the hooks 200c and the like can be made into standard parts, and doctors can select different types of disc-shaped frames, hook rods 200b, fixed rods 200a and hooks 200c according to the size of the surgical incision to freely combine the same, thereby greatly increasing the operability of selecting surgical instruments.

Preferably, the directional hole 100b and the fixing rod 200a may be in an interference fit, so as to fix the two. Preferably, the directional hole 100b and the fixing rod 200a may be screwed to fix the two. After the directional hole 100b is fixed with the fixing rod 200a, the degree of freedom of the hook rod 200b is also defined, that is: the movement of the hook bar 200b can only be along the axial direction of the fixing bar 200a, that is, the radial direction of the disc frame 100, and the fixing bar 200a provides a sliding space for the hook bar 200a and simultaneously limits the shaking range of the hook bar 200a, thereby overcoming the problem that the hook body is shaken by using a spring as a tension part, reducing the possibility of secondary trauma caused by the shaking of the hook body in the incision, and reducing the postoperative pain of a patient.

Prior to surgery, the surgical retractor 200 is mounted on a disk-shaped frame. During the operation, the surgeon selects a disc-shaped holder 100 with an appropriate disc diameter according to the incision size determined by the surgical plan. After the doctor firstly cuts the surgical site through the scalpel and forms the incision, fix the disk-shaped frame 100 at the position of the patient according to the mode that can expose the incision, then slowly apply the pulling force of leaving the disk-shaped frame 100 back to the hook rod 200b and make the drag hook drag the incision so as to expose the affected part with the expansion incision, thereby the doctor of being convenient for operates, at this moment, hook rod 200b with the hook body 200c can be along the mode of the radial movement of disk-shaped frame 100 with dead lever 200a sliding connection. After the operation is completed, the hook lever 200b is slowly pushed toward the disc frame 100 so that the hook body slowly reduces and restores the incision, so that the surgeon can suture the incision.

To maintain the hook body 200c stationary and maintain the size of the incision during the procedure. Preferably, a section of the fixing rod 200a extending out of the outer side surface of the disc frame 100 is provided with a locking hole 200a-2 arranged in an axial direction thereof, as shown in fig. 2. Meanwhile, the hook lever 200b is provided with a locking groove 200b-1 running along the axial direction thereof and matching with the locking hole 200 a-1. The locking hole 200a-2 extends through to its cavity structure 200 a-1. Accordingly, when the locking member is inserted into the locking hole 200a-2 and the locking groove 200b-1, the hook lever 200b is restricted from sliding and is locked, and the hook body 200c is maintained in a fixed state.

Preferably, as shown in fig. 3, the fixing lever 200a is provided with a movement restricting part 200a-3 capable of restricting the movement of the hook lever 200 b. As shown in FIG. 2, the side of the hook stem 200b facing away from the patient has a stop tab 200 b-2. The movement restricting portions 200a-3 may be movement restricting grooves that are matched with the movement restricting projections 200 b-2. When the stopping groove and the stopping projection 200b-2 contact each other, the hook 200c cannot further enlarge the incision, preventing the incision from being torn due to carelessness of medical personnel. Of course, this is an option for passive protection, since the incision is opened during the anterior part of the operation, and the medical staff is not fatigued to tear the incision, and this is a preferred configuration for the pulling device.

Example 2

This embodiment may be a further improvement and/or a supplement to embodiment 1, and repeated contents are not described again. The preferred embodiments of the present invention are described in whole and/or in part in the context of other embodiments, which can supplement the present embodiment, without resulting in conflict or inconsistency.

As shown in fig. 5, the orientation holes 100b are arranged along the circumferential direction of the disc holder 100. So that the surgeon can select the positioning holes 100b at different positions according to different requirements to fix the surgical retractor 200. The surgical retractor 200 may also be arranged symmetrically so that the surgical retractor is pulled from two symmetrical directions. Also can set up more surgical retractor from different modes according to actual demand, follow different direction multiple spot tractive with the incision to expose operation pathological change position better.

As shown in fig. 5, the angle between two circumferentially adjacent directional holes 100b is approximately between 30 ° and 55 °. And a surgical retractor 200 can be arranged in each directional hole 100b to meet the requirement of multi-point traction. In the multi-point pulling, the retraction amount of the hook body 200a in the middle position may be larger than the retraction amount of the hook body 200a in the two side positions, and the incision is approximately elliptical after being enlarged, and the elliptical incision can reduce the possibility of tearing.

It should be noted that the above-mentioned embodiments are exemplary, and those skilled in the art can devise various solutions in light of the present disclosure, which are also within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present specification and drawings are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims (10)

1. A retractor for a neurosurgical incision, comprising:

a disc-shaped frame (100) relatively fixed to a surgical site of a patient in such a manner that an incision is placed in a cavity (100a) thereof and the incision is exposed; and

a surgical retractor (200) which moves in the radial direction of the disk frame (100) so as to enlarge the incision;

it is characterized in that the preparation method is characterized in that,

the disk-shaped frame (100) has an orientation hole (100b) running along the radial direction thereof for fixing a fixing rod (200a) of the surgical retractor (200), the fixing rod (200a) is configured with a cavity structure (200a-1), so that the hook rod (200b) is connected with the fixing rod (200a) in a sliding manner in a manner that the hook body (200c) can move along the radial direction of the disk-shaped frame (100).

2. The pulling device according to claim 1, characterized in that the section of the fixing rod (200a) that extends outside the outer side of the disc-shaped frame (100) is provided with locking holes (200a-2) arranged axially along it, said locking holes (200a-2) penetrating to their cavity structure (200a-1) so that the fixing rod (200a) can restrict the hook rod (200b) from sliding in case the hook body (200c) enlarges the cut.

3. The pulling device according to claim 2, characterised in that the hooking rod (200b) is provided with a locking groove (200b-1) running in its axial direction and matching the locking hole (200 a-2).

4. The pulling apparatus as defined in claim 3, wherein the fixing lever (200a) is provided with a movement restricting portion (200a-3) capable of restricting movement of the hook lever (200 b).

5. The pulling device according to claim 1, characterised in that the orientation holes (100b) are arranged along the circumference of the plate-shaped frame (100) so that the surgical retractor (200) can be provided in at least two on the plate-shaped frame (100).

6. The pulling device according to claim 5, characterized in that the angle of the two circumferentially adjacent orientation holes (100b) is such that the cut-out is substantially elliptical after enlargement.

7. Pulling device according to one of claims 1 to 6, characterised in that the disc-shaped holder (100) has an adhesive patch for fixing it to the surgical site.

8. The pulling device according to any one of claims 1 to 6, characterised in that the hooking rod (200b) is removably associated with the hooking body (200 c).

9. The pulling device as recited in any one of claims 1 to 6, wherein the directional hole (100b) is an interference fit with the securing rod (200 a).

10. The pulling device as defined in any one of claims 1 to 6, wherein the directional hole (100b) is threadedly connected to the fixing rod (200 a).

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